diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 4409f04a..63427aa4 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -32,7 +32,7 @@ class AttachmentsController < ApplicationController
   def get_file
     normal_status(-1, "参数缺失") if params[:download_url].blank?
     url = base_url.starts_with?("https:") ? URI.encode(params[:download_url].to_s.gsub("http:", "https:")) : URI.encode(params[:download_url].to_s)
-    if url.starts_with?(base_url)
+    if url.starts_with?(base_url) && !url.starts_with?("#{base_url}/repo")
       domain  = GiteaService.gitea_config[:domain]
       api_url = GiteaService.gitea_config[:base_url]
       url = ("/repos"+url.split(base_url + "/api")[1]).gsub('?filepath=', '/').gsub('&', '?')