diff --git a/app/models/concerns/with_siblings.rb b/app/models/concerns/with_siblings.rb
index 10e956c76..9b5fc6d3c 100644
--- a/app/models/concerns/with_siblings.rb
+++ b/app/models/concerns/with_siblings.rb
@@ -44,7 +44,7 @@ def contextualized_name
   private
 
   def qualified_position
-    "#{self.class.name.downcase.pluralize}.position"
+    "#{self.class.table_name}.position"
   end
 end