--- a/hgext/configwizard/__init__.py
+++ b/hgext/configwizard/__init__.py
@@ -89,16 +89,41 @@ Newer versions of Mercurial have built-i
 filesystem watching services to make common operations faster.
 
 This integration is STRONGLY RECOMMENDED when using the Firefox
 repository.
 
 Please upgrade to Mercurial 3.8+ so this feature is available.
 '''.lstrip()
 
+WIP_INFO = '''
+It is common to want a quick view of changesets that are in progress.
+
+The ``hg wip`` command provides such a view.
+
+Example Usage:
+
+  $ hg wip
+  o   4084:fcfa34d0387b dminor @
+  |  mozreview: use repository name when displaying treeherder results (bug 1230548) r=mcote
+  | @   4083:786baf6d476a gps
+  | |  mozreview: create child review requests from batch API
+  | o   4082:3f100fa4a94f gps
+  | |  mozreview: copy more read-only processing code; r?smacleod
+  | o   4081:939417680cbe gps
+  |/   mozreview: add web API to submit an entire series of commits (bug 1229468); r?smacleod
+
+(Not shown are the colors that help denote the state each changeset
+is in.)
+
+(Relevant config options: alias.wip, revsetalias.wip, templates.wip)
+
+Would you like to install the `hg wip` alias (Yn)? $$ &Yes $$ &No
+'''.lstrip()
+
 FIREFOXTREE_INFO = '''
 The firefoxtree extension makes interacting with the multiple Firefox
 repositories easier:
 
 * Aliases for common trees are pre-defined. e.g. `hg pull central`
 * Pulling from known Firefox trees will create "remote refs" appearing as
   tags. e.g. pulling from fx-team will produce a "fx-team" tag.
 * The `hg fxheads` command will list the heads of all pulled Firefox repos
@@ -184,16 +209,17 @@ command = cmdutil.command(cmdtable)
 
 wizardsteps = {
     'hgversion',
     'username',
     'diff',
     'color',
     'historyediting',
     'fsmonitor',
+    'wip',
     'firefoxtree',
     'codereview',
     'pushtotry',
     'configchange',
 }
 
 @command('configwizard', [
     ('s', 'statedir', '', _('directory to store state')),
@@ -230,16 +256,19 @@ def configwizard(ui, repo, statedir=None
         _promptnativeextension(ui, cw, 'color', 'Enable color output to your terminal')
 
     if 'historyediting' in runsteps:
         _checkhistoryediting(ui, cw)
 
     if 'fsmonitor' in runsteps:
         _checkfsmonitor(ui, cw, hgversion)
 
+    if 'wip' in runsteps:
+        _checkwip(ui, cw)
+
     if 'firefoxtree' in runsteps:
         _promptvctextension(ui, cw, 'firefoxtree', FIREFOXTREE_INFO)
 
     if 'codereview' in runsteps:
         _checkcodereview(ui, cw)
 
     if 'pushtotry' in runsteps:
         _promptvctextension(ui, cw, 'push-to-try', PUSHTOTRY_INFO)
@@ -404,16 +433,57 @@ def _checkfsmonitor(ui, cw, hgversion):
 
     # Mercurial 3.8+ has fsmonitor built-in.
     if hgversion >= (3, 8, 0):
         _promptnativeextension(ui, cw, 'fsmonitor', FSMONITOR_INFO)
     else:
         ui.write(FSMONITOR_NOT_AVAILABLE)
 
 
+def _checkwip(ui, cw):
+    havewip = ui.hasconfig('alias', 'wip')
+
+    if not havewip and ui.promptchoice(WIP_INFO):
+        return
+
+    # The wip configuration changes over time. Ensure it is up to date.
+    cw.c.setdefault('alias', {})
+    cw.c.setdefault('revsetalias', {})
+    cw.c.setdefault('templates', {})
+
+    cw.c['alias']['wip'] = 'log --graph --rev=wip --template=wip'
+
+    cw.c['revsetalias']['wip'] = ('('
+                'parents(not public()) '
+                'or not public() '
+                'or . '
+                'or (head() and branch(default))'
+            ') and (not obsolete() or unstable()^) '
+            'and not closed()')
+
+    cw.c['templates']['wip'] = ("'"
+            # prefix with branch name
+            '{label("log.branch", branches)} '
+            # rev:node
+            '{label("changeset.{phase}", rev)}'
+            '{label("changeset.{phase}", ":")}'
+            '{label("changeset.{phase}", short(node))} '
+            # just the username part of the author, for brevity
+            '{label("grep.user", author|user)}'
+            # tags and bookmarks
+            '{label("log.tag", if(tags," {tags}"))}'
+            '{label("log.tag", if(fxheads," {fxheads}"))} '
+            '{label("log.bookmark", if(bookmarks," {bookmarks}"))}'
+            '\\n'
+            # first line of commit message
+            '{label(ifcontains(rev, revset("."), "desc.here"),desc|firstline)}'
+            "'"
+        )
+
+
 def _checkcodereview(ui, cw):
     # We don't check for bzexport if reviewboard is enabled because
     # bzexport is legacy.
     if ui.hasconfig('extensions', 'reviewboard'):
         return
 
     if ui.promptchoice('Will you be submitting commits to Mozilla (Yn)? $$ &Yes $$ &No'):
         return

--- a/hgext/configwizard/hgsetup/config.py
+++ b/hgext/configwizard/hgsetup/config.py
@@ -39,45 +39,8 @@ class MercurialConfig(object):
         """
         if not path:
             path = ''
 
         if 'extensions' not in self._c:
             self._c['extensions'] = {}
 
         self._c['extensions'][name] = path
-
-    def have_wip(self):
-        return 'wip' in self._c.get('alias', {})
-
-    def install_wip_alias(self):
-        """hg wip shows a concise view of work in progress."""
-        alias = self._c.setdefault('alias', {})
-        alias['wip'] = 'log --graph --rev=wip --template=wip'
-
-        revsetalias = self._c.setdefault('revsetalias', {})
-        revsetalias['wip'] = ('('
-                'parents(not public()) '
-                'or not public() '
-                'or . '
-                'or (head() and branch(default))'
-            ') and (not obsolete() or unstable()^) '
-            'and not closed()')
-
-        templates = self._c.setdefault('templates', {})
-        templates['wip'] = ("'"
-            # prefix with branch name
-            '{label("log.branch", branches)} '
-            # rev:node
-            '{label("changeset.{phase}", rev)}'
-            '{label("changeset.{phase}", ":")}'
-            '{label("changeset.{phase}", short(node))} '
-            # just the username part of the author, for brevity
-            '{label("grep.user", author|user)}'
-            # tags and bookmarks
-            '{label("log.tag", if(tags," {tags}"))}'
-            '{label("log.tag", if(fxheads," {fxheads}"))} '
-            '{label("log.bookmark", if(bookmarks," {bookmarks}"))}'
-            '\\n'
-            # first line of commit message
-            '{label(ifcontains(rev, revset("."), "desc.here"),desc|firstline)}'
-            "'"
-        )

--- a/hgext/configwizard/hgsetup/wizard.py
+++ b/hgext/configwizard/hgsetup/wizard.py
@@ -27,41 +27,16 @@ from .config import (
     ParseException,
 )
 
 FINISHED = '''
 Your Mercurial should now be properly configured and recommended extensions
 should be up to date!
 '''.strip()
 
-WIP_INFO = '''
-It is common to want a quick view of changesets that are in progress.
-
-The ``hg wip`` command provides should a view.
-
-Example Usage:
-
-  $ hg wip
-  o   4084:fcfa34d0387b dminor  @
-  |  mozreview: use repository name when displaying treeherder results (bug 1230548) r=mcote
-  | @   4083:786baf6d476a gps
-  | |  mozreview: create child review requests from batch API
-  | o   4082:3f100fa4a94f gps
-  | |  mozreview: copy more read-only processing code; r?smacleod
-  | o   4081:939417680cbe gps
-  |/   mozreview: add web API to submit an entire series of commits (bug 1229468); r?smacleod
-
-(Not shown are the colors that help denote the state each changeset
-is in.)
-
-(Relevant config options: alias.wip, revsetalias.wip, templates.wip)
-
-Would you like to install the `hg wip` alias?
-'''.strip()
-
 FILE_PERMISSIONS_WARNING = '''
 Your hgrc file is currently readable by others.
 
 Sensitive information such as your Bugzilla credentials could be
 stolen if others have access to this file/machine.
 '''.strip()
 
 MULTIPLE_VCT = '''
@@ -98,20 +73,16 @@ class MercurialSetupWizard(object):
 
         hg = get_hg_path()
         config_path = config_file(config_paths)
 
         self.updater.update_all()
 
         hg_version = get_hg_version(hg)
 
-        if not c.have_wip():
-            if self._prompt_yn(WIP_INFO):
-                c.install_wip_alias()
-
         # Look for and clean up old extensions.
         for ext in {'bzexport', 'qimportbz', 'mqext'}:
             path = os.path.join(self.ext_dir, ext)
             if os.path.exists(path):
                 if self._prompt_yn('Would you like to remove the old and no '
                     'longer referenced repository at %s' % path):
                     print('Cleaning up old repository: %s' % path)
                     shutil.rmtree(path)

new file mode 100644
--- /dev/null
+++ b/hgext/configwizard/tests/test-wip.t
@@ -0,0 +1,91 @@
+  $ . $TESTDIR/hgext/configwizard/tests/helpers.sh
+
+Rejecting wip doesn't install it
+
+  $ hg --config ui.interactive=true --config configwizard.steps=wip,configchange configwizard << EOF
+  > 
+  > n
+  > EOF
+  This wizard will guide you through configuring Mercurial for an optimal
+  experience contributing to Mozilla projects.
+  
+  The wizard makes no changes without your permission.
+  
+  To begin, press the enter/return key.
+   <RETURN>
+  It is common to want a quick view of changesets that are in progress.
+  
+  The ``hg wip`` command provides such a view.
+  
+  Example Usage:
+  
+    $ hg wip
+    o   4084:fcfa34d0387b dminor @
+    |  mozreview: use repository name when displaying treeherder results (bug 1230548) r=mcote
+    | @   4083:786baf6d476a gps
+    | |  mozreview: create child review requests from batch API
+    | o   4082:3f100fa4a94f gps
+    | |  mozreview: copy more read-only processing code; r?smacleod
+    | o   4081:939417680cbe gps
+    |/   mozreview: add web API to submit an entire series of commits (bug 1229468); r?smacleod
+  
+  (Not shown are the colors that help denote the state each changeset
+  is in.)
+  
+  (Relevant config options: alias.wip, revsetalias.wip, templates.wip)
+  
+  Would you like to install the `hg wip` alias (Yn)?  n
+
+wip enabled when requested
+
+  $ hg --config configwizard.steps=wip,configchange configwizard
+  This wizard will guide you through configuring Mercurial for an optimal
+  experience contributing to Mozilla projects.
+  
+  The wizard makes no changes without your permission.
+  
+  To begin, press the enter/return key.
+   <RETURN>
+  It is common to want a quick view of changesets that are in progress.
+  
+  The ``hg wip`` command provides such a view.
+  
+  Example Usage:
+  
+    $ hg wip
+    o   4084:fcfa34d0387b dminor @
+    |  mozreview: use repository name when displaying treeherder results (bug 1230548) r=mcote
+    | @   4083:786baf6d476a gps
+    | |  mozreview: create child review requests from batch API
+    | o   4082:3f100fa4a94f gps
+    | |  mozreview: copy more read-only processing code; r?smacleod
+    | o   4081:939417680cbe gps
+    |/   mozreview: add web API to submit an entire series of commits (bug 1229468); r?smacleod
+  
+  (Not shown are the colors that help denote the state each changeset
+  is in.)
+  
+  (Relevant config options: alias.wip, revsetalias.wip, templates.wip)
+  
+  Would you like to install the `hg wip` alias (Yn)?  y
+  Your config file needs updating.
+  Would you like to see a diff of the changes first (Yn)?  y
+  --- hgrc.old
+  +++ hgrc.new
+  @@ -0,0 +1,6 @@
+  +[alias]
+  +wip = log --graph --rev=wip --template=wip
+  +[revsetalias]
+  +wip = (parents(not public()) or not public() or . or (head() and branch(default))) and (not obsolete() or unstable()^) and not closed()
+  +[templates]
+  +wip = '{label("log.branch", branches)} {label("changeset.{phase}", rev)}{label("changeset.{phase}", ":")}{label("changeset.{phase}", short(node))} {label("grep.user", author|user)}{label("log.tag", if(tags," {tags}"))}{label("log.tag", if(fxheads," {fxheads}"))} {label("log.bookmark", if(bookmarks," {bookmarks}"))}\n{label(ifcontains(rev, revset("."), "desc.here"),desc|firstline)}'
+  
+  Write changes to hgrc file (Yn)?  y
+
+  $ cat .hgrc
+  [alias]
+  wip = log --graph --rev=wip --template=wip
+  [revsetalias]
+  wip = (parents(not public()) or not public() or . or (head() and branch(default))) and (not obsolete() or unstable()^) and not closed()
+  [templates]
+  wip = '{label("log.branch", branches)} {label("changeset.{phase}", rev)}{label("changeset.{phase}", ":")}{label("changeset.{phase}", short(node))} {label("grep.user", author|user)}{label("log.tag", if(tags," {tags}"))}{label("log.tag", if(fxheads," {fxheads}"))} {label("log.bookmark", if(bookmarks," {bookmarks}"))}\n{label(ifcontains(rev, revset("."), "desc.here"),desc|firstline)}'