diff --git a/lib/tfw/networking/server/tfw_server.py b/lib/tfw/networking/server/tfw_server.py
index 0ce0b00..4d9f8f6 100644
--- a/lib/tfw/networking/server/tfw_server.py
+++ b/lib/tfw/networking/server/tfw_server.py
@@ -39,9 +39,13 @@ class TFWServer:
 
 class FSMManager:
     def __init__(self, fsm_type):
-        self.fsm = fsm_type()
+        self._fsm = fsm_type()
         self.trigger_handlers = defaultdict(list)
 
+    @property
+    def fsm(self):
+        return self._fsm
+
     def trigger(self, trigger, message):
         if all((handler() for handler in self.trigger_handlers[trigger])):
             try: self.fsm.trigger(trigger, message=message)