diff --git a/osm_common/msgbase.py b/osm_common/msgbase.py
index 80c5be5..958bb3e 100644
--- a/osm_common/msgbase.py
+++ b/osm_common/msgbase.py
@@ -79,14 +79,14 @@
             "Method 'read' not implemented", http_code=HTTPStatus.INTERNAL_SERVER_ERROR
         )
 
-    async def aiowrite(self, topic, key, msg, loop=None):
+    async def aiowrite(self, topic, key, msg):
         raise MsgException(
             "Method 'aiowrite' not implemented",
             http_code=HTTPStatus.INTERNAL_SERVER_ERROR,
         )
 
     async def aioread(
-        self, topic, loop=None, callback=None, aiocallback=None, group_id=None, **kwargs
+        self, topic, callback=None, aiocallback=None, group_id=None, **kwargs
     ):
         raise MsgException(
             "Method 'aioread' not implemented",