diff --git a/hgext/pager.py b/hgext/pager.py
--- a/hgext/pager.py
+++ b/hgext/pager.py
@@ -76,7 +76,7 @@ def uisetup(ui):
                 ui.disablepager()
         return orig(ui, options, cmd, cmdfunc)
 
-    extensions.wrapfunction(dispatch, b'_runcommand', pagecmd)
+    extensions.wrapfunction(dispatch, '_runcommand', pagecmd)
 
 
 attended = [b'annotate', b'cat', b'diff', b'export', b'glog', b'log', b'qdiff']