diff --git a/vcsserver/http_main.py b/vcsserver/http_main.py
--- a/vcsserver/http_main.py
+++ b/vcsserver/http_main.py
@@ -354,5 +354,6 @@ class ResponseFilter(object):
 def main(global_config, **settings):
     if MercurialFactory:
         hgpatches.patch_largefiles_capabilities()
+        hgpatches.patch_subrepo_type_mapping()
     app = HTTPApplication(settings=settings)
     return app.wsgi_app()
diff --git a/vcsserver/main.py b/vcsserver/main.py
--- a/vcsserver/main.py
+++ b/vcsserver/main.py
@@ -503,5 +503,6 @@ class VcsServerCommand(object):
 def main(argv=sys.argv, quiet=False):
     if MercurialFactory:
         hgpatches.patch_largefiles_capabilities()
+        hgpatches.patch_subrepo_type_mapping()
     command = VcsServerCommand(argv, quiet=quiet)
     return command.run()