diff --git a/aioax25/tools/call.py b/aioax25/tools/call.py
index 521450b..3099fd5 100644
--- a/aioax25/tools/call.py
+++ b/aioax25/tools/call.py
@@ -34,7 +34,6 @@ def __init__(self, source, destination, kissparams, port=0):
         self._station = AX25Station(
             self._interface,
             source,
-            protocol=AX25Version.AX25_20,
             log=stnlog,
         )
         self._station.attach()