--- a/hgext3rd/topic/__init__.py	Sat Oct 14 18:56:42 2017 +0200
+++ b/hgext3rd/topic/__init__.py	Sat Oct 14 19:06:06 2017 +0200
@@ -462,6 +462,8 @@
         # Have some restrictions on the topic name just like bookmark name
         scmutil.checknewlabel(repo, topic, 'topic')
 
+    compat.startpager(ui, 'topics')
+
     if list:
         if clear or rev:
             raise error.Abort(_("cannot use --clear or --rev with --list"))
@@ -541,6 +543,7 @@
         topic = repo.currenttopic
     if topic is None:
         branch = repo[None].branch()
+    compat.startpager(ui, 'stack')
     return stack.showstack(ui, repo, branch=branch, topic=topic, opts=opts)
 
 @command('debugcb|debugconvertbookmark', [