diff -r 2533f186089d surf.c
--- a/surf.c	Thu Mar 31 12:52:35 2011 +0200
+++ b/surf.c	Thu Sep 08 16:20:02 2011 +0200
@@ -345,7 +345,7 @@
 	updatewinid(c);
 	for(i = 0; i < LENGTH(keys); i++) {
 		if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
-				&& CLEANMASK(ev->state) == keys[i].mod
+				&& (ev->state & keys[i].mod) == keys[i].mod
 				&& keys[i].func) {
 			keys[i].func(c, &(keys[i].arg));
 			processed = TRUE;