diff --git a/frame.go b/frame.go
index e9e29c7..56d4664 100644
--- a/frame.go
+++ b/frame.go
@@ -377,7 +377,7 @@ const (
 func MppFrameInit() (*MppFrame, MppRet) {
 	cFrame := C.MppFrame(nil)
 	ret := MppRet(C.mpp_frame_init(&cFrame))
-	return &MppFrame{c: cFrame}, ret
+	return &MppFrame{c: &cFrame}, ret
 }
 
 func (f *MppFrame) Deinit() MppRet {
diff --git a/packet.go b/packet.go
index a9db3f5..a5882ac 100644
--- a/packet.go
+++ b/packet.go
@@ -15,8 +15,8 @@ import "C"
 
 func NewMppPacket() (*MppPacket, MppRet) {
 	cPacket := C.MppPacket(nil)
-	ret := MppRet(C.mpp_packet_new(cPacket))
-	return &MppPacket{c: cPacket}, ret
+	ret := MppRet(C.mpp_packet_new(&cPacket))
+	return &MppPacket{c: &cPacket}, ret
 }
 
 func (packet *MppPacket) Init(data []byte, size int64) MppRet {