diff --git a/libkwineffects/kwinglplatform.cpp b/libkwineffects/kwinglplatform.cpp
index d4309b9a68..6a60e5e1a5 100644
--- a/libkwineffects/kwinglplatform.cpp
+++ b/libkwineffects/kwinglplatform.cpp
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <QDebug>
 
 #include <sys/utsname.h>
+#include <X11/Xlib.h>
 
 #include <iostream>
 #include <iomanip>