diff --git a/source/blender/python/intern/CMakeLists.txt b/source/blender/python/intern/CMakeLists.txt
index 30ab4bd4b0e..06a1dc5732b 100644
--- a/source/blender/python/intern/CMakeLists.txt
+++ b/source/blender/python/intern/CMakeLists.txt
@@ -242,6 +242,9 @@ if(WITH_PLAYER)
 	add_definitions(-DWITH_PLAYER)
 endif()
 
+if(WITH_OPENMP)
+	add_definitions(-DWITH_OPENMP)
+endif()