diff --git a/app/controllers/internal_controller.rb b/app/controllers/internal_controller.rb
index ee5c8c69..f90c2608 100644
--- a/app/controllers/internal_controller.rb
+++ b/app/controllers/internal_controller.rb
@@ -79,7 +79,7 @@ def registrations_for_user
 
   def show_registration
     attendee_id = params.require(:attendee_id)
-    registration = Registration.find_by(id: attendee_id)
+    registration = Registration.find(attendee_id)
     render json: registration
   end
 end