diff --git a/rtmp/conn.go b/rtmp/conn.go
index 1db2cb6e..3864df98 100644
--- a/rtmp/conn.go
+++ b/rtmp/conn.go
@@ -121,17 +121,6 @@ func Dial(url string, timeout uint, log Log) (*Conn, error) {
 	if err != nil {
 		return nil, err
 	}
-	if c.link.port == 0 {
-		switch {
-		case (c.link.protocol & featureSSL) != 0:
-			c.link.port = 433
-			c.log(FatalLevel, pkg+"SSL not supported")
-		case (c.link.protocol & featureHTTP) != 0:
-			c.link.port = 80
-		default:
-			c.link.port = 1935
-		}
-	}
 	c.link.url = rtmpProtocolStrings[c.link.protocol] + "://" + c.link.host + ":" + strconv.Itoa(int(c.link.port)) + "/" + c.link.app
 	c.link.protocol |= featureWrite
 
diff --git a/rtmp/parseurl.go b/rtmp/parseurl.go
index ad3409b6..c2880368 100644
--- a/rtmp/parseurl.go
+++ b/rtmp/parseurl.go
@@ -99,5 +99,15 @@ func parseURL(addr string) (protocol int32, host string, port uint16, app, playp
 		}
 	}
 
+	if port == 0 {
+		switch {
+		case (protocol & featureSSL) != 0:
+			port = 433
+		case (protocol & featureHTTP) != 0:
+			port = 80
+		default:
+			port = 1935
+		}
+	}
 	return protocol, host, port, app, playpath, nil
 }