diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index 78d6443c..7e2a1cff 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -419,7 +419,7 @@ func startSession(rtmp *C.RTMP, u string, timeout uint32) (*C.RTMP, error) {
 	C_RTMP_Init(rtmp)
 	//C.RTMP_Init(rtmp)
 	rtmp.Link.timeout = connect_timeout
-	if rtmpSetupUrl(rtmp, u) == 0 {
+	if C_RTMP_SetupUrl(rtmp, u) == 0 {
 		// if C.RTMP_SetupURL(rtmp, C.CString(u)) == 0 {
 		//C.RTMP_Close(rtmp)
 		//C.RTMP_Free(rtmp)
@@ -467,7 +467,7 @@ func C_RTMP_Init(r *C.RTMP) {
 	r.Link.swfAge = 30
 }
 
-func rtmpSetupUrl(r *C.RTMP, u string) int32 {
+func C_RTMP_SetupUrl(r *C.RTMP, u string) int32 {
 	url := goStrToCStr(u)
 
 	var ret, len int32