diff --git a/apps/app_queue.c b/apps/app_queue.c
index 0f9eef1263..c21b36bd17 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -4469,6 +4469,7 @@ static int unload_module(void)
 	res |= ast_custom_function_unregister(&queuemembercount_function);
 	res |= ast_custom_function_unregister(&queuememberlist_function);
 	res |= ast_custom_function_unregister(&queuewaitingcount_function);
+	ast_devstate_del(statechange_queue, NULL);
 
 	ast_module_user_hangup_all();