diff --git a/src/Interface/Interface_Version.hxx b/src/Interface/Interface_Version.hxx
index bfe7caffd9..90c78b315e 100644
--- a/src/Interface/Interface_Version.hxx
+++ b/src/Interface/Interface_Version.hxx
@@ -12,8 +12,8 @@
 // commercial license or contractual agreement.
 
 #include <Standard_Version.hxx>
-#define XSTEP_PROCESSOR_VERSION "Open CASCADE %s processor "OCC_VERSION_STRING
-#define XSTEP_SYSTEM_VERSION    "Open CASCADE "OCC_VERSION_STRING
+#define XSTEP_PROCESSOR_VERSION "Open CASCADE %s processor " OCC_VERSION_STRING
+#define XSTEP_SYSTEM_VERSION    "Open CASCADE " OCC_VERSION_STRING
 #define XSTEP_Config            OCC_VERSION_STRING
 #define XSTEP_ULNames           OCC_VERSION_STRING
 
diff --git a/src/STEPControl/STEPControl_Controller.cxx b/src/STEPControl/STEPControl_Controller.cxx
index 5a1cef6883..e6e3f2188c 100644
--- a/src/STEPControl/STEPControl_Controller.cxx
+++ b/src/STEPControl/STEPControl_Controller.cxx
@@ -64,7 +64,7 @@ STEPControl_Controller::STEPControl_Controller ()
   if (!init) {
     RWHeaderSection::Init();  RWStepAP214::Init();
 
-    Interface_Static::Init ("step","write.step.product.name",'t',"Open CASCADE STEP translator "OCC_VERSION_STRING);
+    Interface_Static::Init ("step","write.step.product.name",'t',"Open CASCADE STEP translator " OCC_VERSION_STRING);
     Interface_Static::Init ("step","write.step.assembly",'e',"");
     Interface_Static::Init ("step","write.step.assembly",'&',"enum 0");
     Interface_Static::Init ("step","write.step.assembly",'&',"eval Off");