diff --git a/net/irda/timer.c b/net/irda/timer.c
index d730099..0335ba0 100644
--- a/net/irda/timer.c
+++ b/net/irda/timer.c
@@ -219,7 +219,7 @@
  *
  *
  */
-void irlap_media_busy_expired(void* data)
+static void irlap_media_busy_expired(void *data)
 {
 	struct irlap_cb *self = (struct irlap_cb *) data;