diff --git a/src/utils/ManifestUtils.ts b/src/utils/ManifestUtils.ts
index 51afd58..3b22efe 100644
--- a/src/utils/ManifestUtils.ts
+++ b/src/utils/ManifestUtils.ts
@@ -1,3 +1,5 @@
+'use strict';
+
 import { extensions, Extension } from 'vscode';
 
 export class ExtensionManifestReader {