diff --git a/index.d.ts b/index.d.ts
index 4001695..d9ffc8c 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -488,7 +488,7 @@ declare namespace WAWebJS {
     /** 
      * Forwards this message to another chat
      */
-    forward: (chat: Chat | string) => Promise,
+    forward: (chat: Chat | string) => Promise<void>,
   }
 
   /** ID that represents a message */