diff --git a/hgext3rd/fastannotate/commands.py b/hgext3rd/fastannotate/commands.py
--- a/hgext3rd/fastannotate/commands.py
+++ b/hgext3rd/fastannotate/commands.py
@@ -146,6 +146,7 @@
         for name in ui.configlist('fastannotate', 'defaultformat', ['number']):
             opts[name] = True
 
+    ui.pager('fastannotate')
     template = opts.get('template')
     if template == 'json':
         formatter = faformatter.jsonformatter(ui, repo, opts)
diff --git a/hgext3rd/fbshow.py b/hgext3rd/fbshow.py
--- a/hgext3rd/fbshow.py
+++ b/hgext3rd/fbshow.py
@@ -67,6 +67,7 @@
     specifying custom templates.
 
     """
+    ui.pager('show')
     if len(args) == 0:
         opts['rev'] = ['.']
         pats = []
diff --git a/hgext3rd/smartlog.py b/hgext3rd/smartlog.py
--- a/hgext3rd/smartlog.py
+++ b/hgext3rd/smartlog.py
@@ -51,9 +51,6 @@
 )
 from mercurial import node as nodemod
 from mercurial.i18n import _
-from hgext import pager
-
-pager.attended.append('smartlog')
 
 cmdtable = {}
 command = registrar.command(cmdtable)
@@ -666,6 +663,7 @@
     with ui.configoverride(overrides, 'smartlog'):
         revdag = getdag(ui, repo, revs, masterrev)
         displayer = cmdutil.show_changeset(ui, repo, opts, buffered=True)
+        ui.pager('smartlog')
         cmdutil.displaygraph(
             ui, repo, revdag, displayer, graphmod.asciiedges, None, None)
 
diff --git a/hgext3rd/tweakdefaults.py b/hgext3rd/tweakdefaults.py
--- a/hgext3rd/tweakdefaults.py
+++ b/hgext3rd/tweakdefaults.py
@@ -592,6 +592,7 @@
     # Add '--' to make sure grep recognizes all remaining arguments
     # (passed in by xargs) as filenames.
     cmd.append('--')
+    ui.pager('grep')
     p = subprocess.Popen(cmd, bufsize=-1, close_fds=util.closefds,
                          stdin=subprocess.PIPE)