diff --git a/src/ca/service.c b/src/ca/service.c
index 152149909..03fb7977c 100644
--- a/src/ca/service.c
+++ b/src/ca/service.c
@@ -748,7 +748,7 @@ const struct in_addr	*pnet_addr
 )
 {
 	int		v42;
-	int		port;
+	unsigned short	port;
 	char		rej[64];
       	chid		chan;
 	int		status;