diff --git a/app/models/repository/mercurial.rb b/app/models/repository/mercurial.rb
index 4f0bb89e6..58332e803 100644
--- a/app/models/repository/mercurial.rb
+++ b/app/models/repository/mercurial.rb
@@ -49,6 +49,10 @@ class Repository::Mercurial < Repository
     true
   end
 
+  def supports_revision_graph?
+    true
+  end
+
   def repo_log_encoding
     'UTF-8'
   end