diff --git a/resolvers/messages.py b/resolvers/messages.py
index 4f68a0f..f8efa57 100644
--- a/resolvers/messages.py
+++ b/resolvers/messages.py
@@ -10,7 +10,7 @@ from services.schema import mutation
 
 @mutation.field("createMessage")
 @login_required
-async def create_message(_, info, chat: str, body: str, reply_to=None):
+async def create_message(_, info, chat_id: str, body: str, reply_to=None):
     """
     create message with
         :body for
@@ -19,11 +19,11 @@ async def create_message(_, info, chat: str, body: str, reply_to=None):
     """
     author_id = info.context["author_id"]
 
-    chat_dict = await redis.execute("GET", f"chats/{chat}")
-    if not chat_dict:
+    chat_data = await redis.execute("GET", f"chats/{chat_id}")
+    if not chat_data:
         return {"error": "chat is not exist"}
     else:
-        chat_dict = vars(json.loads(chat))
+        chat_dict = json.loads(chat_data)
         message_id = (await redis.execute("GET", f"chats/{chat_dict['id']}/next_message_id")) or 0
         message_id = int(message_id)
         new_message = {