diff --git a/clients/oxygen/demo/CMakeLists.txt b/clients/oxygen/demo/CMakeLists.txt
index 865b505ccc..fa7cf498c7 100644
--- a/clients/oxygen/demo/CMakeLists.txt
+++ b/clients/oxygen/demo/CMakeLists.txt
@@ -1,3 +1,4 @@
+include_directories(${KDEBASE_WORKSPACE_SOURCE_DIR}/libs/oxygen)
 include_directories( ${KDE4_KDEUI_INCLUDES} )