diff --git a/lib/hostip.c b/lib/hostip.c
index 7a32d1728ed66c98b7ed2243dc2c25698d46ce17..6c5e56788561720fd44f7c9ef7adc132974efa40 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -555,6 +555,6 @@ Curl_addrinfo *Curl_addrinfo_copy(void *org, int port)
 {
   struct hostent *orig = org;
 
-  return Curl_he2ai(orig, port);
+  return Curl_he2ai(orig, (unsigned short)port);
 }
 #endif /* CURLRES_ADDRINFO_COPY */