diff --git a/support/windowmanager.cpp b/support/windowmanager.cpp
index 8eba67add..55d0ddfd0 100644
--- a/support/windowmanager.cpp
+++ b/support/windowmanager.cpp
@@ -67,7 +67,6 @@
 #else
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
-#include "fixx11h.h"
 #endif
 #endif