diff --git a/hw/xfree86/common/xf86Config.c b/hw/xfree86/common/xf86Config.c
index d9f1dd903..bcad246f5 100644
--- a/hw/xfree86/common/xf86Config.c
+++ b/hw/xfree86/common/xf86Config.c
@@ -75,6 +75,7 @@ extern DeviceAssocRec mouse_assoc;
 #endif
 
 #ifdef XKB
+#undef XKB_IN_SERVER
 #define XKB_IN_SERVER
 #include <X11/extensions/XKBsrv.h>
 #endif