diff --git a/openbsc/include/openbsc/mgcp.h b/openbsc/include/openbsc/mgcp.h
index bce7d43..e3fd511 100644
--- a/openbsc/include/openbsc/mgcp.h
+++ b/openbsc/include/openbsc/mgcp.h
@@ -111,7 +111,6 @@
 int mgcp_parse_config(const char *config_file, struct mgcp_config *cfg);
 int mgcp_vty_init(void);
 int mgcp_endpoints_allocate(struct mgcp_config *cfg);
-int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
 void mgcp_free_endp(struct mgcp_endpoint *endp);
 
 /*
diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h
index 872afbf..7f999a3 100644
--- a/openbsc/include/openbsc/mgcp_internal.h
+++ b/openbsc/include/openbsc/mgcp_internal.h
@@ -100,5 +100,6 @@
 			struct mgcp_msg_ptr *ptr, int size,
 			const char **transaction_id, struct mgcp_endpoint **endp);
 int mgcp_send_dummy(struct mgcp_endpoint *endp);
+int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port);
 
 #endif