diff --git a/extensions/typescript/src/utils/plugins.ts b/extensions/typescript/src/utils/plugins.ts
index 98216833500efd1e030a39c0530f7a28f4587cc0..13966dd0b06ee7c00a20560892c10eb31a527b60 100644
--- a/extensions/typescript/src/utils/plugins.ts
+++ b/extensions/typescript/src/utils/plugins.ts
@@ -5,11 +5,10 @@
 
 import { extensions } from 'vscode';
 
-
 export interface TypeScriptServerPlugin {
-	path: string;
-	name: string;
-	languages: string[];
+	readonly path: string;
+	readonly name: string;
+	readonly languages: string[];
 }
 
 export function getContributedTypeScriptServerPlugins(): TypeScriptServerPlugin[] {