diff --git a/app/models/photo.rb b/app/models/photo.rb
index 3e0254800..508a93615 100644
--- a/app/models/photo.rb
+++ b/app/models/photo.rb
@@ -11,7 +11,7 @@ class Photo < ApplicationRecord
 
   # This doesn't work, ActiveRecord tries to use the polymoriphinc photographable
   # relationship instead.
-  # has_many :crops, through: :photo_associations
+  # has_many :crops, through: :photo_associations, counter_cache: true
   def crops
     Crop.distinct.joins(:photo_associations).where(photo_associations: { photo: self })
   end
diff --git a/app/models/photo_association.rb b/app/models/photo_association.rb
index e253a3a50..81477d78f 100644
--- a/app/models/photo_association.rb
+++ b/app/models/photo_association.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class PhotoAssociation < ApplicationRecord
-  belongs_to :photo, touch: true
+  belongs_to :photo, touch: true, inverse_of: :photo_associations
   belongs_to :crop, optional: true, touch: true # , counter_cache: true
   belongs_to :photographable, polymorphic: true, touch: true