diff --git a/clients/oxygen/demo/CMakeLists.txt b/clients/oxygen/demo/CMakeLists.txt
index 14108c14f7..340c1c70e0 100644
--- a/clients/oxygen/demo/CMakeLists.txt
+++ b/clients/oxygen/demo/CMakeLists.txt
@@ -4,7 +4,6 @@ include_directories( ${KDE4_KDEUI_INCLUDES} )
 
 ########### next target ###############
 set( oxygen_shadow_demo_SOURCES
-    ../oxygendecohelper.cpp
     oxygenshadowdemodialog.cpp
     oxygenshadowdemowidget.cpp
     main.cpp)