diff --git a/src/controller/client.py b/src/controller/client.py
index 3e9c536..09731af 100644
--- a/src/controller/client.py
+++ b/src/controller/client.py
@@ -175,7 +175,7 @@ class ClientController:
         #             "update", self.player.team.serialize_guest()
         #         )
 
-        if self.game_controller.game.ended == True:
+        if self.game_controller.game.ended is True:
             return await self.send_error("game is already finished!")
         if self.player.team != self.game_controller.game.current_turn:
             return await self.send_error("it is not your turn to play!")
diff --git a/src/model/game.py b/src/model/game.py
index 7af72f3..e68f22c 100644
--- a/src/model/game.py
+++ b/src/model/game.py
@@ -28,6 +28,7 @@ class Game(Serializable):
     teams: List[Team]
 
     started: bool
+    ended: bool
 
     default_health = 50
 
@@ -46,6 +47,7 @@ class Game(Serializable):
         self.teams: List[Team] = []
 
         self.started = False
+        self.ended = False
 
         self.current_turn = None
 
@@ -187,3 +189,4 @@ class Game(Serializable):
 
     def end_game(self):
         self.lobby.remove(self)
+        self.ended = True