diff --git a/samples/qt/VoxelDemo/VoxelDemo.pro b/samples/qt/VoxelDemo/VoxelDemo.pro
index d99102ec85..1e68dc1416 100644
--- a/samples/qt/VoxelDemo/VoxelDemo.pro
+++ b/samples/qt/VoxelDemo/VoxelDemo.pro
@@ -5,13 +5,13 @@ TARGET = VoxelDemo
 
 SAMPLESROOT = $$(CASROOT)/samples/qt
 
-HEADERS   = $${SAMPLESROOT}/voxeldemo/src/*.h
+HEADERS   = $${SAMPLESROOT}/voxeldemo/inc/*.h
 
 SOURCES   = $${SAMPLESROOT}/voxeldemo/src/*.cxx \
             $${SAMPLESROOT}/voxeldemo/src/*.cpp
 
 
-INCLUDEPATH += $$quote($${SAMPLESROOT}/voxeldemo/src)
+INCLUDEPATH += $$quote($${SAMPLESROOT}/voxeldemo/inc)
 
 DEFINES = CSFDB