diff --git a/CMakeLists.txt b/CMakeLists.txt
index ad5fbbd6e2..a885e355a9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,7 +39,7 @@ include_directories(
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}/lib
     ${CMAKE_CURRENT_SOURCE_DIR}/effects
-    ${CMAKE_SOURCE_DIR}/workspace/libs/kephal
+    ${KDEBASE_WORKSPACE_SOURCE_DIR}/libs/kephal
     )