diff --git a/pingtunnel.go b/pingtunnel.go
index 79adbb0..7de1588 100644
--- a/pingtunnel.go
+++ b/pingtunnel.go
@@ -66,6 +66,8 @@ func (p *MyMsg) MarshalString(s string) []byte {
 
 // Marshal implements the Marshal method of MessageBody interface.
 func (p *MyMsg) Unmarshal(b []byte) error {
+	defer func() {
+	}()
 
 	p.TYPE = binary.BigEndian.Uint32(b[:4])