diff --git a/app/models/abilities/common.rb b/app/models/abilities/common.rb
index 994bf90c0..f82e78b58 100644
--- a/app/models/abilities/common.rb
+++ b/app/models/abilities/common.rb
@@ -50,9 +50,7 @@ module Abilities
         can :show, DirectMessage, sender_id: user.id
       end
 
-      can [:new, :create, :show], ProposalNotification do |notification|
-        notification.proposal.author_id == user.id
-      end
+      can [:create, :show], ProposalNotification, proposal: { author_id: user.id }
 
       can :create, Annotation
       can [:update, :destroy], Annotation, user_id: user.id