Index: apps/app_queue.c
===================================================================
--- apps/app_queue.c	(revision 164978)
+++ apps/app_queue.c	(working copy)
@@ -706,7 +706,7 @@
 			char *tmp_interface;
 			char *slash_pos;
 			tmp_interface = ast_strdupa(cur->state_interface);
-			if ((slash_pos = strchr(interface, '/')))
+			if ((slash_pos = strchr(tmp_interface, '/')))
 				if ((slash_pos = strchr(slash_pos + 1, '/')))
 					*slash_pos = '\0';