diff --git a/scapy/layers/l2.py b/scapy/layers/l2.py
index a923b0e7daf3b6ad085039e1979a3f87b9453251..e1ae21a8de7b7018ec84c88070d749e1cec815c5 100644
--- a/scapy/layers/l2.py
+++ b/scapy/layers/l2.py
@@ -432,7 +432,7 @@ class ARPingResult(SndRcvList):
 
     def show(self):
         for s,r in self.res:
-            print r.sprintf("%Ether.src% %ARP.psrc%")
+            print r.sprintf("%19s,Ether.src% %ARP.psrc%")