diff --git a/Gulpfile.js b/Gulpfile.js
index 51127f9822d..1f930e3b019 100644
--- a/Gulpfile.js
+++ b/Gulpfile.js
@@ -333,6 +333,8 @@ task("run-eslint-rules-tests").description = "Runs the eslint rule tests";
 
 const lintFoldStart = async () => { if (fold.isTravis()) console.log(fold.start("lint")); };
 const lintFoldEnd = async () => { if (fold.isTravis()) console.log(fold.end("lint")); };
+
+/** @type { (folder: string) => { (): Promise<any>; displayName?: string } } */
 const eslint = (folder) => async () => {
     const ESLINTRC_CI = ".eslintrc.ci.json";
     const isCIEnv = cmdLineOptions.ci || process.env.CI === "true";
diff --git a/scripts/types/ambient.d.ts b/scripts/types/ambient.d.ts
index 9ea70adee50..d48de7c05d7 100644
--- a/scripts/types/ambient.d.ts
+++ b/scripts/types/ambient.d.ts
@@ -76,10 +76,15 @@ declare module "undertaker" {
     interface TaskFunctionParams {
         flags?: Record<string, string>;
     }
+    interface TaskFunctionWrapped {
+        description: string
+        flags: { [name: string]: string }
+    }
 }
 
 declare module "gulp-sourcemaps" {
     interface WriteOptions {
         destPath?: string;
     }
-}
\ No newline at end of file
+
+}