diff -urN fvwm-2.6.5-orig/fvwm/fvwm.c fvwm-2.6.5/fvwm/fvwm.c
--- fvwm-2.6.5-orig/fvwm/fvwm.c	2012-02-20 21:27:34 +0900
+++ fvwm-2.6.5/fvwm/fvwm.c	2014-10-07 15:59:06 +0900
@@ -1502,6 +1502,7 @@
 	   event->request_code == X_SetInputFocus||
 	   event->request_code == X_GrabButton ||
 	   event->request_code == X_ChangeWindowAttributes ||
+	   event->request_code == X_QueryColors ||
 	   event->request_code == X_InstallColormap ||
 	   event->request_code == X_FreePixmap ||
 	   event->request_code == X_FreeColors)