diff --git a/typings/index.d.ts b/typings/index.d.ts
index 312b056de..bcda2771e 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -226,9 +226,10 @@ declare namespace local {
      * Set the description to `str`.
      *
      * @param {string} str
+     * @param {{[argName: string]: string}} argsDescription
      * @return {(Command | string)}
      */
-    description(str: string): Command;
+    description(str: string, argsDescription?: {[argName: string]: string}): Command;
     description(): string;
 
     /**