diff --git a/inbox.graphql b/inbox.graphql
index 85c944d..6d49ebe 100644
--- a/inbox.graphql
+++ b/inbox.graphql
@@ -44,7 +44,7 @@ type Mutation {
     updateChat(chat: ChatInput!): ChatResult!
     deleteChat(chatId: String!): ChatResult!
 
-    createMessage(chatId: String!, body: String!, replyTo: Int): ChatResult!
+    createMessage(chat: String!, body: String!, replyTo: Int): ChatResult!
     updateMessage(chatId: String!, id: Int!, body: String!): ChatResult!
     deleteMessage(chatId: String!, id: Int!): ChatResult!
     markAsRead(chatId: String!, ids: [Int]!): ChatResult!
diff --git a/resolvers/messages.py b/resolvers/messages.py
index 7576a0c..aeae3ad 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, chatId: str, body: str, reply_to=None):
+async def create_message(_, info, chat: str, body: str, reply_to=None):
     """
     create message with
         :body for
@@ -19,7 +19,7 @@ async def create_message(_, info, chatId: str, body: str, reply_to=None):
     """
     author_id = info.context["author_id"]
 
-    chat_data = await redis.execute("GET", f"chats/{chatId}")
+    chat_data = await redis.execute("GET", f"chats/{chat}")
     if not chat_data:
         return {"error": "chat is not exist"}
     else: