diff --git a/types/undertaker/index.d.ts b/types/undertaker/index.d.ts
index 8d566d1f19..7c7cd5c1ab 100644
--- a/types/undertaker/index.d.ts
+++ b/types/undertaker/index.d.ts
@@ -9,7 +9,7 @@ import { EventEmitter } from "events";
 
 declare namespace Undertaker {
     interface TaskFunctionParams {
-        name?: string;
+        readonly name?: string;
         displayName?: string;
         description?: string;
         flags?: TaskFlags;