diff --git a/src/osgPlugins/CMakeLists.txt b/src/osgPlugins/CMakeLists.txt
index 0010b24bd..1a6c4a381 100644
--- a/src/osgPlugins/CMakeLists.txt
+++ b/src/osgPlugins/CMakeLists.txt
@@ -263,7 +263,7 @@ ADD_SUBDIRECTORY(trk)
 #
 # ScriptEngines
 #
-IF ((LUA_LIBRARIES AND LUA_INCLUDE_DIR) OR (LUA_SOURCE_DIR AND LUA_INCLUDE_DIR))
+IF ((LUA_LIBRARIES AND LUA_INCLUDE_DIR) OR (LUA_SOURCE_DIR AND LUA_INCLUDE_DIR) OR (OSG_USE_LOCAL_LUA_SOURCE))
     ADD_SUBDIRECTORY(lua)
 ENDIF()