diff --git a/src/bot/mtproto-api/workrooms.ts b/src/bot/mtproto-api/workrooms.ts
index 87ab605..c417393 100644
--- a/src/bot/mtproto-api/workrooms.ts
+++ b/src/bot/mtproto-api/workrooms.ts
@@ -209,7 +209,7 @@ export async function reopenChat(context: Context<"issues.reopened", SupportedEv
 
         await mtProto.client.invoke(
             new mtProto.api.messages.EditChatAdmin({
-                chatId,
+                chatId: chat.chatId,
                 isAdmin: true,
                 userId: chatCreator,
             })