diff --git a/private/effectwatcher.cpp b/private/effectwatcher.cpp
index 48f803d8e..30da58687 100644
--- a/private/effectwatcher.cpp
+++ b/private/effectwatcher.cpp
@@ -24,6 +24,7 @@
 
 #ifdef Q_WS_X11
 #include <X11/Xlib.h>
+#include <QX11Info>
 #endif
 
 namespace Plasma