diff --git a/rtmp/RTMP.go b/rtmp/RTMP.go
index 87236421..dbf48ada 100644
--- a/rtmp/RTMP.go
+++ b/rtmp/RTMP.go
@@ -83,9 +83,7 @@ func (s *rtmpSession) StartSession() error {
 // TODO: Remove mutex
 func (s *rtmpSession) WriteFrame(data []byte, dataLength uint) error {
 	if s.running {
-		dataCopy := make([]byte, len(data))
-		copy(dataCopy, data)
-		if !tools.UintToBool(uint(C.RTMP_write_frame((*C.char)(unsafe.Pointer(&dataCopy[0])), C.uint(dataLength)))) {
+		if !tools.UintToBool(uint(C.RTMP_write_frame((*C.char)(unsafe.Pointer(&data[0])), C.uint(dataLength)))) {
 			return errors.New("RTMP write error! Check rtmp log for details!")
 		}
 	} else {