diff -r c8b2d90fe0f7 -r bfacdb2fbfdc pidgin/gtkplugin.c
--- a/pidgin/gtkplugin.c	Thu Aug 13 12:53:59 2015 -0400
+++ b/pidgin/gtkplugin.c	Fri Aug 14 17:44:44 2015 -0400
@@ -752,6 +752,8 @@
 	GtkTreeIter iter;
 	GList *list, *it;
 
+	g_return_if_fail(d != NULL);
+
 	switch (response) {
 	case GTK_RESPONSE_CLOSE:
 	case GTK_RESPONSE_DELETE_EVENT: