diff --git a/device.go b/device.go
index 0b6448e..56778a3 100644
--- a/device.go
+++ b/device.go
@@ -237,7 +237,6 @@ func (nc *NetCard) runWrite() {
 	for wframe := range nc.FrameChan {
 
 		log.Printf("get wframes bytes len: %d", len(wframe))
-
 		buf.Reset()
 		buf.Write(wframe)
 
@@ -254,6 +253,8 @@ func (nc *NetCard) runWrite() {
 			log.Panic(err)
 		}
 
+		zdec.Close()
+
 		for _, buf := range bufs {
 			_, err := ifce.Write(buf)
 			if err != nil {