diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 3b1a3560ad..c0a3c85818 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -310,7 +310,7 @@ SWITCH_DECLARE(switch_port_t) switch_rtp_set_end_port(switch_port_t port)
         return END_PORT;
 }
 
-static void release_port(const char *host, int port)
+static void release_port(const char *host, switch_port_t port)
 {
 	switch_core_port_allocator_t *alloc = NULL;