diff --git a/basis/x11/xlib/xlib.factor b/basis/x11/xlib/xlib.factor
index de01d509dd..e86bb5e8c3 100644
--- a/basis/x11/xlib/xlib.factor
+++ b/basis/x11/xlib/xlib.factor
@@ -1010,14 +1010,7 @@ STRUCT: XKeymapEvent
 { send_event Bool }
 { display Display* }
 { window Window }
-{ pad int }
-{ pad int }
-{ pad int }
-{ pad int }
-{ pad int }
-{ pad int }
-{ pad int }
-{ pad int } ;
+{ pad int[8] } ;
 
 UNION-STRUCT: XEvent
 { int int }