diff --git a/app/assets/javascripts/admin/index_utils/services/columns.js.coffee b/app/assets/javascripts/admin/index_utils/services/columns.js.coffee
index 2d7abfcab7..aeb1a3e3b6 100644
--- a/app/assets/javascripts/admin/index_utils/services/columns.js.coffee
+++ b/app/assets/javascripts/admin/index_utils/services/columns.js.coffee
@@ -31,7 +31,7 @@ angular.module("admin.indexUtils").factory 'Columns', ($rootScope, $http, $injec
     savePreferences: (action_name) =>
       $http
         method: "PUT"
-        url: "/admin/column_preferences/bulk_update"
+        url: "/admin/column_preferences/bulk_update.json"
         data:
           action_name: action_name
           column_preferences: (preference for column_name, preference of @columns)
diff --git a/config/routes/admin.rb b/config/routes/admin.rb
index 21caa2b677..4016f8a695 100644
--- a/config/routes/admin.rb
+++ b/config/routes/admin.rb
@@ -95,7 +95,7 @@ Openfoodnetwork::Application.routes.draw do
 
     resource :contents
 
-    resources :column_preferences, only: [], format: :json do
+    resources :column_preferences, only: [] do
       put :bulk_update, on: :collection
     end