diff --git a/app/models/comment.rb b/app/models/comment.rb
index f940a5b3c..93944cb7e 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -22,7 +22,7 @@ class Comment < ActiveRecord::Base
   validate :validate_body_length
   validate :comment_valuation, if: -> { valuation }
 
-  belongs_to :commentable, -> { with_hidden }, polymorphic: true, counter_cache: true
+  belongs_to :commentable, -> { with_hidden }, polymorphic: true, counter_cache: true, touch: true
   belongs_to :user, -> { with_hidden }
 
   before_save :calculate_confidence_score