diff --git a/app/models/concerns/photo_capable.rb b/app/models/concerns/photo_capable.rb
index 7c5207a72..61c92c98d 100644
--- a/app/models/concerns/photo_capable.rb
+++ b/app/models/concerns/photo_capable.rb
@@ -1,3 +1,4 @@
+require_relative '../../constants/photo_models.rb'
 module PhotoCapable
   extend ActiveSupport::Concern