diff --git a/plugins/leetcode.cn.js b/plugins/leetcode.cn.js
index 30c7167..53d79ce 100644
--- a/plugins/leetcode.cn.js
+++ b/plugins/leetcode.cn.js
@@ -15,6 +15,7 @@ plugin.init = function() {
   config.sys.urls.problems        = 'https://leetcode-cn.com/api/problems/$category/';
   config.sys.urls.problem         = 'https://leetcode-cn.com/problems/$slug/description/';
   config.sys.urls.graphql         = 'https://leetcode-cn.com/graphql';
+  config.sys.urls.problem_detail  = 'https://leetcode-cn.com/graphql';
   config.sys.urls.test            = 'https://leetcode-cn.com/problems/$slug/interpret_solution/';
   config.sys.urls.session         = 'https://leetcode-cn.com/session/';
   config.sys.urls.submit          = 'https://leetcode-cn.com/problems/$slug/submit/';