diff --git a/Xi/chdevhier.c b/Xi/chdevhier.c
index 9d3c25dc7..02aac88e3 100644
--- a/Xi/chdevhier.c
+++ b/Xi/chdevhier.c
@@ -48,6 +48,10 @@
 #include "geext.h"
 #include "xace.h"
 
+#ifdef XKB
+#include "xkbsrv.h"
+#endif
+
 #include "chdevhier.h"