diff -r ec0af9c59270 -r 1a1972b1a1ff mercurial/hgweb/hgwebdir_mod.py
--- a/mercurial/hgweb/hgwebdir_mod.py	Sat Mar 10 12:35:38 2018 -0800
+++ b/mercurial/hgweb/hgwebdir_mod.py	Sat Mar 10 11:46:52 2018 -0800
@@ -510,7 +510,7 @@
             url += '/'
 
         vars = {}
-        styles, (style, mapfile) = hgweb_mod.getstyle(wsgireq, config,
+        styles, (style, mapfile) = hgweb_mod.getstyle(wsgireq.req, config,
                                                       self.templatepath)
         if style == styles[0]:
             vars['style'] = style