diff --git a/lib/tfw/networking/server/zmq_websocket_handler.py b/lib/tfw/networking/server/zmq_websocket_handler.py
index aa55382..3262f2a 100644
--- a/lib/tfw/networking/server/zmq_websocket_handler.py
+++ b/lib/tfw/networking/server/zmq_websocket_handler.py
@@ -41,12 +41,8 @@ class ZMQWebSocketHandler(WebSocketHandler):
 
 
 class FSMManagingSocketHandler(ZMQWebSocketHandler):
-    fsm = None
-
-    def __init__(self, FSM, application, request, **kwargs):
-        super().__init__(application, request, **kwargs)
-        if self.fsm is None:
-            FSMManagingSocketHandler.fsm = FSM()
+    def initialize(self, fsm):
+        self.fsm = fsm
         self.fsm.subscribe_message_handler(self.handle_fsm_message)
 
     def on_close(self):
diff --git a/src/app/app.py b/src/app/app.py
index 2ab1ea7..d6140a0 100644
--- a/src/app/app.py
+++ b/src/app/app.py
@@ -4,21 +4,17 @@ import zmq
 from tornado.web import Application
 from tornado.ioloop import IOLoop
 
+from sql_injection_fsm import SQLInjectionFSM
 from tfw.config import WEB_PORT
 from tfw.config.logs import logging
 log = logging.getLogger(__name__)
 from tfw.networking.server.zmq_websocket_handler import FSMManagingSocketHandler
-from sql_injection_fsm import SQLInjectionFSM
-
-
-class SQLInjectionFSMManagingSocketHandler(FSMManagingSocketHandler):
-    def __init__(self, application, request, **kwargs):
-        super().__init__(SQLInjectionFSM, application, request, **kwargs)
 
 
 if __name__ == '__main__':
+    fsm = SQLInjectionFSM()
     routes = [
-        (r'/ws', SQLInjectionFSMManagingSocketHandler),
+        (r'/ws', FSMManagingSocketHandler, {'fsm': fsm}),
     ]
     application = Application(
         routes,