diff --git a/CMakeLists.txt b/CMakeLists.txt
index b11a6525549..821e56e4006 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1106,7 +1106,7 @@ elseif(WIN32)
 		set(PLATFORM_LINKFLAGS_DEBUG "/NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:libc.lib")
 
 		# used in many places so include globally, like OpenGL
-		blender_include_dirs("${PTHREADS_INCLUDE_DIRS}")
+		blender_include_dirs_sys("${PTHREADS_INCLUDE_DIRS}")
 
 	elseif(CMAKE_COMPILER_IS_GNUCC)
 	# keep GCC specific stuff here		
diff --git a/source/gameengine/CMakeLists.txt b/source/gameengine/CMakeLists.txt
index a205ccbdc12..aae7e93cc91 100644
--- a/source/gameengine/CMakeLists.txt
+++ b/source/gameengine/CMakeLists.txt
@@ -25,7 +25,7 @@
 
 # there are too many inter-includes so best define here
 if(WITH_PYTHON)
-	blender_include_dirs("${PYTHON_INCLUDE_DIRS}")
+	blender_include_dirs_sys("${PYTHON_INCLUDE_DIRS}")
 	add_definitions(-DWITH_PYTHON)
 endif()