diff --git a/src/kcmkwin/kwincompositing/main.cpp b/src/kcmkwin/kwincompositing/main.cpp
index 239d9f90b4..114428f2ed 100644
--- a/src/kcmkwin/kwincompositing/main.cpp
+++ b/src/kcmkwin/kwincompositing/main.cpp
@@ -15,6 +15,7 @@
 #include <QApplication>
 #include <QLayout>
 
+#include <KPluginFactory>
 #include <KWindowSystem>
 #include <kcmodule.h>
 #include <kservice.h>