diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index 1e087e19..81a27e9e 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -534,9 +534,11 @@ func C_RTMP_SetupURL(r *C.RTMP, u string) int32 {
 
 	length = strlen(url)
 	// TODO: port this
-	ret = int32(C.RTMP_ParseURL((*C.char)(unsafe.Pointer(url)), &r.Link.protocol, &r.Link.hostname,
-		(*C.uint)(&port), &r.Link.playpath0, &r.Link.app))
-
+	//ret = int32(C.RTMP_ParseURL((*C.char)(unsafe.Pointer(url)), &r.Link.protocol,
+	// &r.Link.hostname, (*C.uint)(&port), &r.Link.playpath0, &r.Link.app))
+	ret = int32(C_RTMP_ParseURL((*byte)(unsafe.Pointer(url)), (*int32)(
+		unsafe.Pointer(&r.Link.protocol)), &r.Link.hostname, (*uint32)(
+		unsafe.Pointer(&port)), &r.Link.playpath0, &r.Link.app))
 	if ret == 0 {
 		return ret
 	}