diff --git a/API.txt b/API.txt
index 0ceb3a757..42a212b1e 100644
--- a/API.txt
+++ b/API.txt
@@ -315,7 +315,7 @@ output: Output('result', <type 'dict'>, Gettext('Dictionary mapping variable nam
 command: cert_revoke
 args: 1,1,1
 arg: Str('serial_number', validate_serial_number, label=Gettext('Serial number', domain='ipa', localedir=None), normalizer=normalize_serial_number)
-option: Int('revocation_reason?', default=0, label=Gettext('Reason', domain='ipa', localedir=None), maxvalue=10, minvalue=0)
+option: Int('revocation_reason?', autofill=True, default=0, label=Gettext('Reason', domain='ipa', localedir=None), maxvalue=10, minvalue=0)
 output: Output('result', None, None)
 command: cert_show
 args: 1,1,1
diff --git a/ipalib/plugins/cert.py b/ipalib/plugins/cert.py
index 643e1cdd2..2c8ab4992 100644
--- a/ipalib/plugins/cert.py
+++ b/ipalib/plugins/cert.py
@@ -536,6 +536,7 @@ class cert_revoke(VirtualCommand):
             minvalue=0,
             maxvalue=10,
             default=0,
+            autofill=True
         ),
     )