diff --git a/mercurial/help.py b/mercurial/help.py
--- a/mercurial/help.py
+++ b/mercurial/help.py
@@ -189,6 +189,8 @@ def loaddoc(topic, subdir=None):
 internalstable = sorted([
     (['bundles'], _('Bundles'),
      loaddoc('bundles', subdir='internals')),
+    (['censor'], _('Censor'),
+     loaddoc('censor', subdir='internals')),
     (['changegroups'], _('Changegroups'),
      loaddoc('changegroups', subdir='internals')),
     (['requirements'], _('Repository Requirements'),
diff --git a/tests/test-help.t b/tests/test-help.t
--- a/tests/test-help.t
+++ b/tests/test-help.t
@@ -940,6 +940,7 @@ internals topic renders index of availab
   """""""""""""""""""""""""""""""
   
        bundles       Bundles
+       censor        Censor
        changegroups  Changegroups
        requirements  Repository Requirements
        revlogs       Revision Logs
@@ -2976,6 +2977,13 @@ Sub-topic indexes rendered properly
   Bundles
   </td></tr>
   <tr><td>
+  <a href="/help/internals.censor">
+  censor
+  </a>
+  </td><td>
+  Censor
+  </td></tr>
+  <tr><td>
   <a href="/help/internals.changegroups">
   changegroups
   </a>