diff --git a/tap.go b/tap.go
index 67d5979..33cde84 100644
--- a/tap.go
+++ b/tap.go
@@ -166,7 +166,7 @@ func (nc *NetCard) runRead() {
 
 			log.Printf("Dst: %s %s\n", waterutil.IPv4Destination(rframe), rframe.Destination())
 			log.Printf("Src: %s %s\n", waterutil.IPv4Source(rframe), rframe.Source())
-			log.Printf("Ethertype: %x %v\n", rframe.Ethertype(), waterutil.IsIPv4(rframe))
+			log.Printf("Ethertype: % x %v\n", rframe.Ethertype(), waterutil.IsIPv4(rframe))
 
 			var buffer *[][]byte
 			var key = waterutil.IPv4Destination(rframe).String()