diff -r 25b24a3e5a9e -r f6d25ffc8b7f mercurial/hgweb/hgwebdir_mod.py
--- a/mercurial/hgweb/hgwebdir_mod.py	Fri Jun 30 03:45:37 2017 +0200
+++ b/mercurial/hgweb/hgwebdir_mod.py	Fri Jun 30 03:45:38 2017 +0200
@@ -325,7 +325,7 @@
         def rawentries(subdir="", **map):
 
             descend = self.ui.configbool('web', 'descend', True)
-            collapse = self.ui.configbool('web', 'collapse', False)
+            collapse = self.ui.configbool('web', 'collapse')
             seenrepos = set()
             seendirs = set()
             for name, path in self.repos: