diff --git a/src/xkbcomp/xkbcomp.h b/src/xkbcomp/xkbcomp.h
index c6fce0b..5bee485 100644
--- a/src/xkbcomp/xkbcomp.h
+++ b/src/xkbcomp/xkbcomp.h
@@ -31,6 +31,9 @@
 #define	DEBUG_VAR debugFlags
 #endif
 
+#include <X11/X.h>
+#include <X11/Xdefs.h>
+
 #include "utils.h"
 
 #include <X11/extensions/XKM.h>