diff --git a/clients/oxygen/CMakeLists.txt b/clients/oxygen/CMakeLists.txt
index 84c51b4182..ee25c8f6cb 100644
--- a/clients/oxygen/CMakeLists.txt
+++ b/clients/oxygen/CMakeLists.txt
@@ -1,6 +1,5 @@
 ########### add version number into compilation defines
-# FIXME: CPACK_PACKAGE_VERSION_* are empty
-add_definitions (-DAPP_VERSION=\\\"${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}\\\")
+add_definitions (-DAPP_VERSION=\\\"${KWIN_VERSION}\\\")
 add_definitions(-DHAVE_X11=${X11_FOUND})
 add_subdirectory(config)
 add_subdirectory(demo)