diff --git a/app/controllers/shift_commerce/bundles_controller.rb b/app/controllers/shift_commerce/bundles_controller.rb
index e9afb04..d1a0a8c 100644
--- a/app/controllers/shift_commerce/bundles_controller.rb
+++ b/app/controllers/shift_commerce/bundles_controller.rb
@@ -26,7 +26,7 @@ class BundlesController < ::ApplicationController
         'meta_attributes',
         'updated_at'
       ].join(',').freeze,
-      asset_files: 's3_url'.freeze,
+      asset_files: 'public_url'.freeze,
       products: [
         'reference',
         'title',
diff --git a/spec/mocks/bundle_mocks.rb b/spec/mocks/bundle_mocks.rb
index f748a14..b4fc4e4 100644
--- a/spec/mocks/bundle_mocks.rb
+++ b/spec/mocks/bundle_mocks.rb
@@ -75,7 +75,7 @@ class Bundles
                 "file_content_size": 11920802,
                 "image_height": 5418,
                 "image_width": 3612,
-                "s3_url": "https://production-matalanb-files.s3-eu-west-1.amazonaws.com/uploads/asset_file/asset_file/153570/1510654205.45299-MATALAN-EP24-Alesha_014_1_.jpg",
+                "public_url": "https://production-matalanb-files.s3-eu-west-1.amazonaws.com/uploads/asset_file/asset_file/153570/1510654205.45299-MATALAN-EP24-Alesha_014_1_.jpg",
                 "canonical_path": "https://production-matalanb-files.s3-eu-west-1.amazonaws.com/uploads/asset_file/asset_file/153570/1510654205.45299-MATALAN-EP24-Alesha_014_1_.jpg"
             },
             "relationships": {