diff --git a/CMakeLists.txt b/CMakeLists.txt
index 230964577e..37d5ccc54d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -95,6 +95,8 @@ if(KWIN_BUILD_SCRIPTING)
     add_subdirectory(scripting)
 endif()
 
+add_definitions(-DKDE_DEFAULT_DEBUG_AREA=1212)
+
 ########### next target ###############
 
 set(kwin_KDEINIT_SRCS