diff --git a/clatd.c b/clatd.c
index 43fb5c6..a0ee07d 100644
--- a/clatd.c
+++ b/clatd.c
@@ -82,7 +82,7 @@
 /* function: stop_loop
  * signal handler: stop the event loop
  */
-void stop_loop(int signal) {
+void stop_loop() {
   running = 0;
 }