diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index e6f2e1720..099d45406 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -258,7 +258,7 @@ module ApplicationHelper
   end
 
   def download_url attachment
-    attachment_path(attachment).gsub("/api","")
+    attachment_path(attachment)
   end
 
   # 耗时：天、小时、分、秒