diff --git a/app/models/concerns/notable.rb b/app/models/concerns/notable.rb
index f82431a03b..bd881c2f8f 100644
--- a/app/models/concerns/notable.rb
+++ b/app/models/concerns/notable.rb
@@ -11,7 +11,7 @@ module Notable
 
   def all_notes
     notes = concrete_notes.with_translations
-    return notes.to_a unless Taggable.models.include?(self)
+    return notes.to_a unless Taggable.models.include?(self.class)
 
     notes + tagged_notes.with_translations
   end