diff --git a/CMakeLists.txt b/CMakeLists.txt
index 337fd7af8..c2334155f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -822,10 +822,6 @@ IF(MINGW)
 	# SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -static-libgcc -static-libstdc++")
 	LINK_LIBRARIES(-lgdi32)
 ENDIF(MINGW)
-# 0000661: cmake build on Mac OS: dealing with dylib versus so
-IF(APPLE)
-	SET(CMAKE_SHARED_LIBRARY_SUFFIX ".so")
-ENDIF(APPLE)
 
 # force build directory to be different to source directory
 #if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
diff --git a/cMake/FreeCadMacros.cmake b/cMake/FreeCadMacros.cmake
index 34bdabeac..d47caa836 100644
--- a/cMake/FreeCadMacros.cmake
+++ b/cMake/FreeCadMacros.cmake
@@ -251,5 +251,8 @@ MACRO(SET_PYTHON_PREFIX_SUFFIX ProjectName)
     
     if(WIN32)
         set_target_properties(${ProjectName} PROPERTIES SUFFIX ".pyd")
+    # 0000661: cmake build on Mac OS: dealing with dylib versus so
+    elseif(APPLE)
+        set_target_properties(${ProjectName} PROPERTIES SUFFIX ".so")
     endif(WIN32)
 ENDMACRO(SET_PYTHON_PREFIX_SUFFIX)