diff --git a/src/modules_core/abc/events/on_disconnect_abc.py b/src/modules_core/abc/events/on_disconnect_abc.py
index 00a1af9..eb3be9a 100644
--- a/src/modules_core/abc/events/on_disconnect_abc.py
+++ b/src/modules_core/abc/events/on_disconnect_abc.py
@@ -5,3 +5,6 @@ class OnDisconnectABC(ABC):
 
     @abstractmethod
     def __init__(self): pass
+    
+    @abstractmethod
+    async def on_disconnect(self): pass
\ No newline at end of file