diff --git a/mercurial/hgweb/webcommands.py b/mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py
+++ b/mercurial/hgweb/webcommands.py
@@ -561,7 +561,7 @@
                 fentries=filelist,
                 dentries=dirlist,
                 archives=web.archivelist(hex(node)),
-                **webutil.commonentry(web.repo, ctx))
+                **pycompat.strkwargs(webutil.commonentry(web.repo, ctx)))
 
 @webcommand('tags')
 def tags(web, req, tmpl):