diff --git a/app/assets/javascripts/admin/products/services/product_image_service.js.coffee b/app/assets/javascripts/admin/products/services/product_image_service.js.coffee
index 3d36d0a914..653b714904 100644
--- a/app/assets/javascripts/admin/products/services/product_image_service.js.coffee
+++ b/app/assets/javascripts/admin/products/services/product_image_service.js.coffee
@@ -13,3 +13,5 @@ angular.module("ofn.admin").factory "ProductImageService", (FileUploader, SpreeA
       @imageUploader.onSuccessItem = (image, response) =>
         product.thumb_url = response.thumb_url
         product.image_url = response.image_url
+      @imageUploader.onErrorItem = (image, response) =>
+        alert(response.errors.join("\n"))