diff --git a/cmd/iface/main.go b/cmd/iface/main.go
index acf80d5..1f88082 100644
--- a/cmd/iface/main.go
+++ b/cmd/iface/main.go
@@ -23,7 +23,9 @@ func main(){
 			select {
 				case receivedFrame := <- receiver:
 					fmt.Printf("[default] received '%s'\n", receivedFrame.Payload.Buffer)
-					sender <- receivedFrame.Payload.Buffer[1:]
+					if receivedFrame.Payload.Length > 0 {
+						sender <- receivedFrame.Payload.Buffer[1:]
+					}
 				case closeFunc := <- closer:
 					fmt.Printf("[default] client with protocol '%s' exited\n", client.Protocol)
 					closeFunc()