@@ -244,8 +244,8 @@ def enrich_keytab(keytab):

 				tail_kvno = struct.unpack('>I', record['tail'][0:4])[0]

 				if tail_kvno:

 					entry['tail_kvno'] = tail_kvno

-					# If kvno is zero, assume the one found in the tail is the one that matters:

-					if not entry['kvno']:

+					# tail_kvno overrides kvno if non-zero:

+					if entry['tail_kvno']:

 						entry['actual_kvno'] = entry['tail_kvno']

 			if 'actual_kvno' not in entry:

 				entry['actual_kvno'] = entry['kvno']