diff --git a/config-example.json b/config-example.json
index 097cfdf..276cfa7 100644
--- a/config-example.json
+++ b/config-example.json
@@ -167,7 +167,6 @@
   ],
   "session_secret": "233",
   "rabbitMQ": "amqp://localhost/",
-  "judge_token": "233",
   "email_jwt_secret": "test",
   "google_analytics": "UA-XXXXXXXX-X"
 }
diff --git a/modules/contest.js b/modules/contest.js
index 284c252..a905211 100644
--- a/modules/contest.js
+++ b/modules/contest.js
@@ -390,7 +390,7 @@ app.get('/contest/:id/submissions', async (req, res) => {
           taskId: x.task_id,
           type: pushType,
           displayConfig: displayConfig
-        }, syzoj.config.judge_token) : null,
+        }, syzoj.config.session_secret) : null,
         result: getRoughResult(x, displayConfig),
         running: false,
       })),
@@ -445,7 +445,7 @@ app.get('/contest/submission/:id', async (req, res) => {
         taskId: judge.task_id,
         displayConfig: displayConfig,
         type: 'detail'
-      }, syzoj.config.judge_token) : null,
+      }, syzoj.config.session_secret) : null,
       displayConfig: displayConfig,
       contest: contest,
     });
diff --git a/modules/socketio.js b/modules/socketio.js
index cd137c1..aae0d91 100644
--- a/modules/socketio.js
+++ b/modules/socketio.js
@@ -97,7 +97,7 @@ function initializeSocketIO(s) {
                 winston.info(`Client ${socket.id} connected.`);
                 let req;
                 try {
-                    req = jwt.verify(reqJwt, syzoj.config.judge_token);
+                    req = jwt.verify(reqJwt, syzoj.config.session_secret);
                     if (req.type !== name) {
                         throw new Error("Request type in token mismatch.");
                     }
diff --git a/modules/submission.js b/modules/submission.js
index 65b21ac..4502511 100644
--- a/modules/submission.js
+++ b/modules/submission.js
@@ -125,7 +125,7 @@ app.get('/submissions', async (req, res) => {
           taskId: x.task_id,
           type: 'rough',
           displayConfig: displayConfig
-        }, syzoj.config.judge_token) : null,
+        }, syzoj.config.session_secret) : null,
         result: getRoughResult(x, displayConfig),
         running: false,
       })),
@@ -178,7 +178,7 @@ app.get('/submission/:id', async (req, res) => {
         taskId: judge.task_id,
         type: 'detail',
         displayConfig: displayConfig
-      }, syzoj.config.judge_token) : null,
+      }, syzoj.config.session_secret) : null,
       displayConfig: displayConfig,
     });
   } catch (e) {