diff --git a/openbsc/src/mgcp/mgcp_main.c b/openbsc/src/mgcp/mgcp_main.c
index d5b6502..76f4667 100644
--- a/openbsc/src/mgcp/mgcp_main.c
+++ b/openbsc/src/mgcp/mgcp_main.c
@@ -121,7 +121,7 @@
 	return 0;
 }
 
-static int mgcp_change_cb(struct mgcp_config *cfg, int endpoint, int state, int local_rtp)
+static int mgcp_change_cb(struct mgcp_config *cfg, int endpoint, int state)
 {
 	if (state != MGCP_ENDP_MDCX)
 		return 0;