diff --git a/app/views/apress/amazon_assets/api/v1/assets/_asset.json.jbuilder b/app/views/apress/amazon_assets/api/v1/assets/_asset.json.jbuilder
index 9f22cdb..be5dfcd 100644
--- a/app/views/apress/amazon_assets/api/v1/assets/_asset.json.jbuilder
+++ b/app/views/apress/amazon_assets/api/v1/assets/_asset.json.jbuilder
@@ -1 +1,3 @@
-json.(asset, :id, :file, :origin_file_name, :file_size, :file_content_type)
+json.(asset, :id, :origin_file_name, :file_size, :file_content_type)
+
+json.file asset.file.to_s