diff --git a/lib/redmine/scm/adapters/mercurial_adapter.rb b/lib/redmine/scm/adapters/mercurial_adapter.rb
index 17afa674f..c0b879a91 100644
--- a/lib/redmine/scm/adapters/mercurial_adapter.rb
+++ b/lib/redmine/scm/adapters/mercurial_adapter.rb
@@ -251,6 +251,12 @@ module Redmine
           rev
         end
         private :hgrev
+
+        def hgtarget(path)
+          path ||= ''
+          root_url + '/' + without_leading_slash(path)
+        end
+        private :hgtarget
       end
     end
   end