diff --git a/src/tsconfig.json b/src/tsconfig.json
index 257ea8879f4..27f975eb502 100644
--- a/src/tsconfig.json
+++ b/src/tsconfig.json
@@ -44,7 +44,6 @@
 		"./vs/code/electron-sandbox/processExplorer/processExplorer.js",
 		"./vs/code/electron-sandbox/workbench/workbench.js",
 		"./vs/workbench/contrib/issue/electron-sandbox/issueReporter.js",
-		"./vs/workbench/contrib/webview/browser/pre/service-worker.js",
 		"./typings",
 		"./vs/**/*.ts",
 		"vscode-dts/vscode.proposed.*.d.ts",
diff --git a/src/vs/workbench/contrib/webview/browser/pre/service-worker.js b/src/vs/workbench/contrib/webview/browser/pre/service-worker.js
index 1da9709c314..e5fa674ea82 100644
--- a/src/vs/workbench/contrib/webview/browser/pre/service-worker.js
+++ b/src/vs/workbench/contrib/webview/browser/pre/service-worker.js
@@ -4,7 +4,6 @@
  *--------------------------------------------------------------------------------------------*/
 // @ts-check
 
-/// <reference no-default-lib="true"/>
 /// <reference lib="webworker" />
 
 const sw = /** @type {ServiceWorkerGlobalScope} */ (/** @type {any} */ (self));