diff --git a/src/wayland/CMakeLists.txt b/src/wayland/CMakeLists.txt
index f94cf483db..c59cbeb611 100644
--- a/src/wayland/CMakeLists.txt
+++ b/src/wayland/CMakeLists.txt
@@ -130,7 +130,7 @@ ecm_add_wayland_server_protocol(SERVER_LIB_SRCS
 )
 
 ecm_add_wayland_server_protocol(SERVER_LIB_SRCS
-    PROTOCOL ${KWAYLAND_SOURCE_DIR}/src/client/protocols/pointer-gestures-unstable-v1.xml
+    PROTOCOL ${KWayland_SOURCE_DIR}/src/client/protocols/pointer-gestures-unstable-v1.xml
     BASENAME pointer-gestures-unstable-v1
 )