diff --git a/CMakeLists.txt b/CMakeLists.txt
index d051f5ccce..34300d41ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,13 +84,9 @@ else ()
 endif()
 set (CMAKE_CXX_STANDARD_REQUIRED ON)
 
-# macro: include patched file if it exists
+# include cmake file
 macro (OCCT_INCLUDE_CMAKE_FILE BEING_INCLUDED_FILE)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_INCLUDED_FILE}.cmake")
-    include (${BUILD_PATCH}/${BEING_INCLUDED_FILE}.cmake)
-  else()
-    include (${CMAKE_SOURCE_DIR}/${BEING_INCLUDED_FILE}.cmake)
-  endif()
+  include (${CMAKE_SOURCE_DIR}/${BEING_INCLUDED_FILE}.cmake)
 endmacro()
 
 # set using memory manager option for TKernel
@@ -322,9 +318,6 @@ elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo")
   set (BIN_LETTER "i")
 endif()
 
-# a directory recognized as a 'patch' for OCCT
-set (BUILD_PATCH "" CACHE PATH "${BUILD_PATCH_DESCR}")
-
 # the list of being built toolkits
 set (BUILD_ADDITIONAL_TOOLKITS "" CACHE STRING "${BUILD_ADDITIONAL_TOOLKITS_DESCR}")
 separate_arguments (BUILD_ADDITIONAL_TOOLKITS)
@@ -390,7 +383,7 @@ else()
   set (USE_GLES2 OFF CACHE BOOL "${USE_GLES2_DESCR}")
 endif()
 
-# include the patched or original list of modules
+# include original list of modules
 # list <MODULENAME>_TOOLKITS is created foreach module and contains its toolkits
 # list <OCCT_MODULES> will contain all modules
 OCCT_MODULES_AND_TOOLKITS (MODULES "TOOLKITS" OCCT_MODULES)
@@ -912,7 +905,7 @@ if(APPLE)
   set (INSTALL_NAME_DIR "" CACHE STRING "install_name library suffix on OS X (e.g. @executable_path/../Frameworks)")
 endif()
 
-# include the patched or original list of definitions and flags
+# include original list of definitions and flags
 OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/occt_defs_flags")
 
 foreach (OCCT_3RDPARTY_LIST ${OCCT_3RDPARTY_CMAKE_LIST})
@@ -1029,7 +1022,7 @@ else()
 endif()
 
 # OCCT tools
-# include the patched or original list of tools
+# include original list of tools
 # list <TOOLNAME>_TOOLKITS is created foreach tool and contains its toolkits
 # list <OCCT_TOOLS> will contain all tools
 if (BUILD_Inspector)
@@ -1092,14 +1085,8 @@ if (${DRAWEXE_INDEX} GREATER -1)
   OCCT_INSTALL_FILE_OR_DIR ("data/" "${INSTALL_DIR_DATA}")
   OCCT_INSTALL_FILE_OR_DIR ("samples/tcl" "${INSTALL_DIR_SAMPLES}")
 
-  # copy draw script to install script folder
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/adm/templates/draw.${SCRIPT_EXT}")
-    install (FILES "${BUILD_PATCH}/adm/templates/draw.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-  else()
-    install (FILES "${CMAKE_SOURCE_DIR}/adm/templates/draw.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-  endif()
+  install (FILES "${CMAKE_SOURCE_DIR}/adm/templates/draw.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
+          PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
 
   # copy draw script to CMake binary folder
   OCCT_COPY_FILE_OR_DIR ("adm/templates/draw.${SCRIPT_EXT}" "${CMAKE_BINARY_DIR}")
@@ -1298,14 +1285,8 @@ if (BUILD_MODULE_UwpSample)
 endif()
 
 if (BUILD_TOOL_TOOLKITS)
-  # copy tinspector script to install script folder
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/adm/templates/inspector.${SCRIPT_EXT}")
-    install (FILES "${BUILD_PATCH}/adm/templates/inspector.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-  else()
-    install (FILES "${CMAKE_SOURCE_DIR}/adm/templates/inspector.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
-            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-  endif()
+  install (FILES "${CMAKE_SOURCE_DIR}/adm/templates/inspector.${SCRIPT_EXT}" DESTINATION  "${INSTALL_DIR_SCRIPT}"
+          PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
 
   set (OpenCASCADE_BINARY_DIR "${INSTALL_DIR}/${INSTALL_DIR_BIN}")
   # patch TInspectorEXE
diff --git a/adm/cmake/occt_macros.cmake b/adm/cmake/occt_macros.cmake
index a0ed0fbcba..1a77a9548d 100644
--- a/adm/cmake/occt_macros.cmake
+++ b/adm/cmake/occt_macros.cmake
@@ -34,9 +34,7 @@ endmacro()
 
 function (FILE_TO_LIST FILE_NAME FILE_CONTENT)
   set (LOCAL_FILE_CONTENT)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${FILE_NAME}")
-    file (STRINGS "${BUILD_PATCH}/${FILE_NAME}" LOCAL_FILE_CONTENT)
-  elseif (EXISTS "${CMAKE_SOURCE_DIR}/${FILE_NAME}")
+  if (EXISTS "${CMAKE_SOURCE_DIR}/${FILE_NAME}")
     file (STRINGS "${CMAKE_SOURCE_DIR}/${FILE_NAME}" LOCAL_FILE_CONTENT)
   endif()
 
@@ -44,9 +42,7 @@ function (FILE_TO_LIST FILE_NAME FILE_CONTENT)
 endfunction()
 
 function(FIND_FOLDER_OR_FILE FILE_OR_FOLDER_NAME RESULT_PATH)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${FILE_OR_FOLDER_NAME}")
-    set (${RESULT_PATH} "${BUILD_PATCH}/${FILE_OR_FOLDER_NAME}" PARENT_SCOPE)
-  elseif (EXISTS "${CMAKE_SOURCE_DIR}/${FILE_OR_FOLDER_NAME}")
+  if (EXISTS "${CMAKE_SOURCE_DIR}/${FILE_OR_FOLDER_NAME}")
     set (${RESULT_PATH} "${CMAKE_SOURCE_DIR}/${FILE_OR_FOLDER_NAME}" PARENT_SCOPE)
   else()
     set (${RESULT_PATH} "" PARENT_SCOPE)
@@ -175,25 +171,8 @@ function (FIND_SUBDIRECTORY ROOT_DIRECTORY DIRECTORY_SUFFIX SUBDIRECTORY_NAME)
 endfunction()
 
 function (OCCT_ORIGIN_AND_PATCHED_FILES RELATIVE_PATH SEARCH_TEMPLATE RESULT)
-
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${RELATIVE_PATH}")
-    file (GLOB FOUND_FILES "${BUILD_PATCH}/${RELATIVE_PATH}/${SEARCH_TEMPLATE}")
-  endif()
-
   file (GLOB ORIGIN_FILES "${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${SEARCH_TEMPLATE}")
-  foreach (ORIGIN_FILE ${ORIGIN_FILES})
-    # check for existence of patched version of current file
-    if (NOT BUILD_PATCH OR NOT EXISTS "${BUILD_PATCH}/${RELATIVE_PATH}")
-      list (APPEND FOUND_FILES ${ORIGIN_FILE})
-    else()
-      get_filename_component (ORIGIN_FILE_NAME "${ORIGIN_FILE}" NAME)
-      if (NOT EXISTS "${BUILD_PATCH}/${RELATIVE_PATH}/${ORIGIN_FILE_NAME}")
-        list (APPEND FOUND_FILES ${ORIGIN_FILE})
-      endif()
-    endif()
-  endforeach()
-
-  set (${RESULT} ${FOUND_FILES} PARENT_SCOPE)
+  set (${RESULT} ${ORIGIN_FILES} PARENT_SCOPE)
 endfunction()
 
 function (FILLUP_PRODUCT_SEARCH_TEMPLATE PRODUCT_NAME COMPILER COMPILER_BITNESS SEARCH_TEMPLATES)
@@ -249,32 +228,15 @@ function (FIND_PRODUCT_DIR ROOT_DIR PRODUCT_NAME RESULT)
 endfunction()
 
 macro (OCCT_INSTALL_FILE_OR_DIR BEING_INSTALLED_OBJECT DESTINATION_PATH)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_INSTALLED_OBJECT}")
-    if (IS_DIRECTORY "${BUILD_PATCH}/${BEING_INSTALLED_OBJECT}")
-      # first of all, install original files
-      install (DIRECTORY "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
-
-      # secondly, rewrite original files with patched ones
-      install (DIRECTORY "${BUILD_PATCH}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
-    else()
-      install (FILES     "${BUILD_PATCH}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
-    endif()
+  if (IS_DIRECTORY "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}")
+    install (DIRECTORY "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
   else()
-    if (IS_DIRECTORY "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}")
-      install (DIRECTORY "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
-    else()
-      install (FILES     "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
-    endif()
+    install (FILES     "${CMAKE_SOURCE_DIR}/${BEING_INSTALLED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
   endif()
 endmacro()
 
 macro (OCCT_CONFIGURE_AND_INSTALL BEING_CONGIRUGED_FILE BUILD_NAME INSTALL_NAME DESTINATION_PATH)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_CONGIRUGED_FILE}")
-    configure_file("${BUILD_PATCH}/${BEING_CONGIRUGED_FILE}" "${BUILD_NAME}" @ONLY)
-  else()
-    configure_file("${CMAKE_SOURCE_DIR}/${BEING_CONGIRUGED_FILE}" "${BUILD_NAME}" @ONLY)
-  endif()
-
+  configure_file("${CMAKE_SOURCE_DIR}/${BEING_CONGIRUGED_FILE}" "${BUILD_NAME}" @ONLY)
   install(FILES "${OCCT_BINARY_DIR}/${BUILD_NAME}" DESTINATION  "${DESTINATION_PATH}" RENAME ${INSTALL_NAME})
 endmacro()
 
@@ -314,10 +276,7 @@ function (EXTRACT_PACKAGE_FILES RELATIVE_PATH OCCT_PACKAGE RESULT_FILES RESULT_I
     return()
   endif()
 
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${RELATIVE_PATH}/${OCCT_PACKAGE}/FILES")
-    file (STRINGS "${BUILD_PATCH}/${RELATIVE_PATH}/${OCCT_PACKAGE}/FILES" OCCT_PACKAGE_FILES)
-    set (OCCT_PACKAGE_INCLUDE_DIR "${BUILD_PATCH}/${RELATIVE_PATH}/${OCCT_PACKAGE}")
-  elseif (EXISTS "${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${OCCT_PACKAGE}/FILES")
+  if (EXISTS "${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${OCCT_PACKAGE}/FILES")
     file (STRINGS "${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${OCCT_PACKAGE}/FILES" OCCT_PACKAGE_FILES)
     set (OCCT_PACKAGE_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${OCCT_PACKAGE}")
   endif()
@@ -335,11 +294,7 @@ function (EXTRACT_PACKAGE_FILES RELATIVE_PATH OCCT_PACKAGE RESULT_FILES RESULT_I
   endforeach()
 
   if (NOT FILE_PATH_LIST)
-    if(BUILD_PATH)
-      message (WARNING "FILES has not been found in ${BUILD_PATCH}/${RELATIVE_PATH}/${OCCT_PACKAGE}")
-    else()
-      message (WARNING "FILES has not been found in ${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${OCCT_PACKAGE}")
-    endif()
+    message (WARNING "FILES has not been found in ${CMAKE_SOURCE_DIR}/${RELATIVE_PATH}/${OCCT_PACKAGE}")
   endif()
 
   set (${RESULT_FILES} ${FILE_PATH_LIST} PARENT_SCOPE)
@@ -412,9 +367,7 @@ endfunction()
 
 function (FILE_TO_LIST FILE_NAME FILE_CONTENT)
   set (LOCAL_FILE_CONTENT)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${FILE_NAME}")
-    file (STRINGS "${BUILD_PATCH}/${FILE_NAME}" LOCAL_FILE_CONTENT)
-  elseif (EXISTS "${CMAKE_SOURCE_DIR}/${FILE_NAME}")
+  if (EXISTS "${CMAKE_SOURCE_DIR}/${FILE_NAME}")
     file (STRINGS "${CMAKE_SOURCE_DIR}/${FILE_NAME}" LOCAL_FILE_CONTENT)
   endif()
 
@@ -426,9 +379,6 @@ function (COLLECT_AND_INSTALL_OCCT_HEADER_FILES THE_ROOT_TARGET_OCCT_DIR THE_OCC
 
   # consider patched header.in template
   set (TEMPLATE_HEADER_PATH "${CMAKE_SOURCE_DIR}/adm/templates/header.in")
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/adm/templates/header.in")
-    set (TEMPLATE_HEADER_PATH "${BUILD_PATCH}/adm/templates/header.in")
-  endif()
 
   set (OCCT_HEADER_FILES_COMPLETE)
   foreach(OCCT_TOOLKIT ${THE_OCCT_BUILD_TOOLKITS})
@@ -509,25 +459,14 @@ macro (OCCT_COPY_FILE_OR_DIR BEING_COPIED_OBJECT DESTINATION_PATH)
   if (EXISTS "${CMAKE_SOURCE_DIR}/${BEING_COPIED_OBJECT}")
     file (COPY "${CMAKE_SOURCE_DIR}/${BEING_COPIED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
   endif()
-
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_COPIED_OBJECT}")
-    # secondly, rewrite original files with patched ones
-    file (COPY "${BUILD_PATCH}/${BEING_COPIED_OBJECT}" DESTINATION  "${DESTINATION_PATH}")
-  endif()
 endmacro()
 
 macro (OCCT_CONFIGURE BEING_CONGIRUGED_FILE FINAL_NAME)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_CONGIRUGED_FILE}")
-    configure_file("${BUILD_PATCH}/${BEING_CONGIRUGED_FILE}" "${FINAL_NAME}" @ONLY)
-  else()
-    configure_file("${CMAKE_SOURCE_DIR}/${BEING_CONGIRUGED_FILE}" "${FINAL_NAME}" @ONLY)
-  endif()
+  configure_file("${CMAKE_SOURCE_DIR}/${BEING_CONGIRUGED_FILE}" "${FINAL_NAME}" @ONLY)
 endmacro()
 
 macro (OCCT_ADD_SUBDIRECTORY BEING_ADDED_DIRECTORY)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_ADDED_DIRECTORY}/CMakeLists.txt")
-    add_subdirectory(${BUILD_PATCH}/${BEING_ADDED_DIRECTORY})
-  elseif (EXISTS "${CMAKE_SOURCE_DIR}/${BEING_ADDED_DIRECTORY}/CMakeLists.txt")
+  if (EXISTS "${CMAKE_SOURCE_DIR}/${BEING_ADDED_DIRECTORY}/CMakeLists.txt")
     add_subdirectory (${CMAKE_SOURCE_DIR}/${BEING_ADDED_DIRECTORY})
   else()
     message (STATUS "${BEING_ADDED_DIRECTORY} directory is not included")
diff --git a/adm/cmake/occt_toolkit.cmake b/adm/cmake/occt_toolkit.cmake
index 3fb6035a50..b3d82bc0b9 100644
--- a/adm/cmake/occt_toolkit.cmake
+++ b/adm/cmake/occt_toolkit.cmake
@@ -96,12 +96,7 @@ string (REGEX REPLACE ";" " " PRECOMPILED_DEFS "${PRECOMPILED_DEFS}")
 set (USED_RCFILE "")
 if (MSVC)
   set (USED_RCFILE "${CMAKE_BINARY_DIR}/resources/${PROJECT_NAME}.rc")
-
-  if (APPLY_OCCT_PATCH_DIR AND EXISTS "${APPLY_OCCT_PATCH_DIR}/adm/templates/occt_toolkit.rc.in")
-    configure_file("${APPLY_OCCT_PATCH_DIR}/adm/templates/occt_toolkit.rc.in" "${USED_RCFILE}" @ONLY)
-  else()
-    configure_file("${CMAKE_SOURCE_DIR}/adm/templates/occt_toolkit.rc.in" "${USED_RCFILE}" @ONLY)
-  endif()
+  configure_file("${CMAKE_SOURCE_DIR}/adm/templates/occt_toolkit.rc.in" "${USED_RCFILE}" @ONLY)
 endif()
 
 set (CURRENT_MODULE)
diff --git a/adm/cmake/vardescr.cmake b/adm/cmake/vardescr.cmake
index ea50401191..d0cdd6946b 100644
--- a/adm/cmake/vardescr.cmake
+++ b/adm/cmake/vardescr.cmake
@@ -1,13 +1,5 @@
 # variable description
 
-# 
-set (BUILD_PATCH_DESCR 
-"Points to the directory recognized as a 'patch' for OCCT. If specified,
-the files from this directory take precedence over the corresponding native
-OCCT sources. This way you are able to introduce patches to Open CASCADE
-Technology not affecting the original source distribution")
-
-
 set (BUILD_LIBRARY_TYPE_DESCR 
 "Specifies the type of library to be created. 'Shared' libraries
 are linked dynamically and loaded at runtime. 'Static' libraries
diff --git a/adm/scripts/cmake_custom.bat.template b/adm/scripts/cmake_custom.bat.template
index f2bbe81343..fabb66c5a1 100644
--- a/adm/scripts/cmake_custom.bat.template
+++ b/adm/scripts/cmake_custom.bat.template
@@ -28,9 +28,6 @@ rem Use semicolon-separated list of toolkits if you want to disable all modules
 rem  and build only some toolkits.
 rem set BUILD_ADDITIONAL_TOOLKITS=
 
-rem Set a directory recognized as a patch for OCCT.
-rem set BUILD_PATCH=
-
 rem set BUILD_MODULE_ApplicationFramework=ON
 rem set BUILD_MODULE_DataExchange=ON
 rem set BUILD_MODULE_DETools=OFF
diff --git a/adm/scripts/cmake_custom.sh.template b/adm/scripts/cmake_custom.sh.template
index e6e265df4d..b628e4a87e 100644
--- a/adm/scripts/cmake_custom.sh.template
+++ b/adm/scripts/cmake_custom.sh.template
@@ -21,9 +21,6 @@ FREETYPE_DIR="$OCCT3RDPARTY/freetype-2.7.1"
 #  and build only some toolkits.
 #BUILD_ADDITIONAL_TOOLKITS=
 
-# Set a directory recognized as a patch for OCCT.
-#BUILD_PATCH=
-
 #BUILD_MODULE_ApplicationFramework=ON
 #BUILD_MODULE_DataExchange=ON
 #BUILD_MODULE_DETools=OFF
diff --git a/adm/scripts/cmake_gen.bat b/adm/scripts/cmake_gen.bat
index 80f9600c62..6a1651ce0e 100644
--- a/adm/scripts/cmake_gen.bat
+++ b/adm/scripts/cmake_gen.bat
@@ -19,7 +19,6 @@ set BUILD_ADDITIONAL_TOOLKITS=
 set BUILD_DOC_Overview=OFF
 set BUILD_Inspector=OFF
 set BUILD_LIBRARY_TYPE=Shared
-set BUILD_PATCH=
 set BUILD_RELEASE_DISABLE_EXCEPTIONS=ON
 set BUILD_WITH_DEBUG=OFF
 set BUILD_ENABLE_FPE_SIGNAL_HANDLER=ON
@@ -69,7 +68,6 @@ cmake -G "%arch_compile%" ^
   -D BUILD_MODULE_ModelingAlgorithms:BOOL=%BUILD_MODULE_ModelingAlgorithms% ^
   -D BUILD_MODULE_ModelingData:BOOL=%BUILD_MODULE_ModelingData% ^
   -D BUILD_MODULE_Visualization:BOOL=%BUILD_MODULE_Visualization% ^
-  -D BUILD_PATCH:PATH="%BUILD_PATCH%" ^
   -D BUILD_RELEASE_DISABLE_EXCEPTIONS:BOOL=%BUILD_RELEASE_DISABLE_EXCEPTIONS% ^
   -D BUILD_WITH_DEBUG:BOOL=%BUILD_WITH_DEBUG% ^
   -D BUILD_ENABLE_FPE_SIGNAL_HANDLER:BOOL=%BUILD_ENABLE_FPE_SIGNAL_HANDLER% ^
diff --git a/adm/scripts/cmake_gen.sh b/adm/scripts/cmake_gen.sh
index feef7a07db..7ebd7d1e6d 100755
--- a/adm/scripts/cmake_gen.sh
+++ b/adm/scripts/cmake_gen.sh
@@ -24,7 +24,6 @@ BUILD_ADDITIONAL_TOOLKITS=
 BUILD_DOC_Overview=OFF
 BUILD_Inspector=OFF
 BUILD_LIBRARY_TYPE=Shared
-BUILD_PATCH=
 BUILD_RELEASE_DISABLE_EXCEPTIONS=ON
 BUILD_WITH_DEBUG=OFF
 BUILD_ENABLE_FPE_SIGNAL_HANDLER=ON
@@ -70,7 +69,6 @@ cmake -G "Unix Makefiles" \
   -D BUILD_MODULE_ModelingAlgorithms:BOOL=$BUILD_MODULE_ModelingAlgorithms \
   -D BUILD_MODULE_ModelingData:BOOL=$BUILD_MODULE_ModelingData \
   -D BUILD_MODULE_Visualization:BOOL=$BUILD_MODULE_Visualization \
-  -D BUILD_PATCH:PATH="$BUILD_PATCH" \
   -D BUILD_RELEASE_DISABLE_EXCEPTIONS:BOOL=$BUILD_RELEASE_DISABLE_EXCEPTIONS \
   -D BUILD_WITH_DEBUG:BOOL=$BUILD_WITH_DEBUG \
   -D BUILD_ENABLE_FPE_SIGNAL_HANDLER:BOOL=$BUILD_ENABLE_FPE_SIGNAL_HANDLER \
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 92977d362d..f6d8d1612d 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -32,13 +32,9 @@ set (CMAKE_SUPPRESS_REGENERATION TRUE)
 
 set (CMAKE_CONFIGURATION_TYPES Release Debug RelWithDebInfo CACHE INTERNAL "" FORCE)
 
-# macro: include patched file if it exists
+# include cmake file
 macro (OCCT_INCLUDE_CMAKE_FILE BEING_INCLUDED_FILE)
-  if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_INCLUDED_FILE}.cmake")
-    include (${BUILD_PATCH}/${BEING_INCLUDED_FILE}.cmake)
-  else()
-    include (${CMAKE_SOURCE_DIR}/${BEING_INCLUDED_FILE}.cmake)
-  endif()
+  include (${CMAKE_SOURCE_DIR}/${BEING_INCLUDED_FILE}.cmake)
 endmacro()
 
 macro (OCCT_INCLUDE_3RDPARTY_PRODUCT USE_PRODUCT PRODUCT_CONFIG_FILE)
@@ -247,7 +243,7 @@ if (NOT DEFINED INSTALL_DIR_DATA)
   endif()
 endif()
 
-# include the patched or original list of definitions and flags
+# include original list of definitions and flags
 OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/occt_defs_flags")
 
 OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/3rdparty_macro")
@@ -334,7 +330,7 @@ if (WIN32)
 endif()
 
 # OCCT tools
-# include the patched or original list of tools
+# include original list of tools
 # list <TOOLNAME>_TOOLKITS is created foreach tool and contains its toolkits
 # list <OCCT_TOOLS> will contain all tools
 OCCT_MODULES_AND_TOOLKITS (TOOLS "TOOL_TOOLKITS" OCCT_TOOLS)