diff --git a/src/mq/mq_notify.c b/src/mq/mq_notify.c
index 3f8661e..221591c 100644
--- a/src/mq/mq_notify.c
+++ b/src/mq/mq_notify.c
@@ -12,7 +12,7 @@
 	const struct sigevent *sev;
 };
 
-void *start(void *p)
+static void *start(void *p)
 {
 	struct args *args = p;
 	char buf[32];