--- a/hgext/bugzilla.py	Mon Jul 10 16:41:13 2017 -0400
+++ b/hgext/bugzilla.py	Fri Jul 07 10:03:22 2017 +0200
@@ -303,6 +303,7 @@
     cmdutil,
     error,
     mail,
+    registrar,
     url,
     util,
 )
@@ -315,6 +316,13 @@
 # leave the attribute unspecified.
 testedwith = 'ships-with-hg-core'
 
+configtable = {}
+configitem = registrar.configitem(configtable)
+
+configitem('bugzilla', 'apikey',
+    default='',
+)
+
 class bzaccess(object):
     '''Base class for access to Bugzilla.'''
 
@@ -800,7 +808,7 @@
         bz = self.ui.config('bugzilla', 'bzurl',
                             'http://localhost/bugzilla/')
         self.bzroot = '/'.join([bz, 'rest'])
-        self.apikey = self.ui.config('bugzilla', 'apikey', '')
+        self.apikey = self.ui.config('bugzilla', 'apikey')
         self.user = self.ui.config('bugzilla', 'user', 'bugs')
         self.passwd = self.ui.config('bugzilla', 'password')
         self.fixstatus = self.ui.config('bugzilla', 'fixstatus', 'RESOLVED')