diff --git a/src/controller/app.py b/src/controller/app.py
index 67b2faa..2a0b507 100644
--- a/src/controller/app.py
+++ b/src/controller/app.py
@@ -1,3 +1,4 @@
+import secrets
 from tornado.ioloop import IOLoop
 from tornado.web import Application
 
@@ -10,10 +11,13 @@ from tfw.config.logs import logging
 log = logging.getLogger(__name__)
 
 if __name__ == '__main__':
-    solvable_connector = AsyncSolvableConnector()
+    kwargs = {
+        'solvable_connector': AsyncSolvableConnector(),
+        'token': secrets.token_hex(32)
+    }
     routes = [
-        (r'/{secret}/?'.format(secret=taoenv.SECRET), SolutionCheckHandler, {'solvable_connector': solvable_connector}),
-        (r'/{secret}/test/?'.format(secret=taoenv.SECRET), TestHandler, {'solvable_connector': solvable_connector})
+        (r'/{secret}/?'.format(secret=taoenv.SECRET), SolutionCheckHandler, kwargs),
+        (r'/{secret}/test/?'.format(secret=taoenv.SECRET), TestHandler, kwargs)
     ]
     app = Application(
         routes