diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index a9f715db..c706ef5c 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -361,9 +361,9 @@ func (s *session) Write(data []byte) (int, error) {
 func startSession(rtmp *C.RTMP, u string, timeout uint32) (*C.RTMP, error) {
 	connect_timeout := C.int(timeout)
 	rtmp = rtmpAlloc()
-	rtmpInit(rtmp)
+	C.RTMP_Init(rtmp)
 	rtmp.Link.timeout = connect_timeout
-	if rtmpSetupUrl(rtmp, u) == 0 {
+	if C.RTMP_SetupURL(rtmp, (*C.char)(unsafe.Pointer(goStrToCStr(u)))) == 0 {
 		C.RTMP_Close(rtmp)
 		C.RTMP_Free(rtmp)
 		return nil, errors.New("rtmp startSession: Failed to setup URL!")