diff --git a/extensions/typescript-language-features/src/features/baseCodeLensProvider.ts b/extensions/typescript-language-features/src/features/baseCodeLensProvider.ts
index 23abd57888722be98735759631f8b6d932afec80..ba25a71bcc632da830a0d4bdf52ce5306c9d425a 100644
--- a/extensions/typescript-language-features/src/features/baseCodeLensProvider.ts
+++ b/extensions/typescript-language-features/src/features/baseCodeLensProvider.ts
@@ -9,7 +9,6 @@ import { ITypeScriptServiceClient, ServerResponse } from '../typescriptService';
 import { escapeRegExp } from '../utils/regexp';
 import * as typeConverters from '../utils/typeConverters';
 
-
 export class ReferencesCodeLens extends vscode.CodeLens {
 	constructor(
 		public document: vscode.Uri,
@@ -20,14 +19,14 @@ export class ReferencesCodeLens extends vscode.CodeLens {
 	}
 }
 
-export class CachedNavTreeResponse {
-	private response?: Promise<ServerResponse<Proto.NavTreeResponse>>;
+export class CachedResponse<T extends Proto.Response> {
+	private response?: Promise<ServerResponse<T>>;
 	private version: number = -1;
 	private document: string = '';
 
 	public execute(
 		document: vscode.TextDocument,
-		f: () => Promise<ServerResponse<Proto.NavTreeResponse>>
+		f: () => Promise<ServerResponse<T>>
 	) {
 		if (this.matches(document)) {
 			return this.response;
@@ -42,8 +41,8 @@ export class CachedNavTreeResponse {
 
 	private update(
 		document: vscode.TextDocument,
-		response: Promise<ServerResponse<Proto.NavTreeResponse>>
-	): Promise<ServerResponse<Proto.NavTreeResponse>> {
+		response: Promise<ServerResponse<T>>
+	): Promise<ServerResponse<T>> {
 		this.response = response;
 		this.version = document.version;
 		this.document = document.uri.toString();
@@ -56,7 +55,7 @@ export abstract class TypeScriptBaseCodeLensProvider implements vscode.CodeLensP
 
 	public constructor(
 		protected client: ITypeScriptServiceClient,
-		private cachedResponse: CachedNavTreeResponse
+		private cachedResponse: CachedResponse<Proto.NavTreeResponse>
 	) { }
 
 	public get onDidChangeCodeLenses(): vscode.Event<void> {
diff --git a/extensions/typescript-language-features/src/features/implementationsCodeLens.ts b/extensions/typescript-language-features/src/features/implementationsCodeLens.ts
index 3f1aab8ad1fe8fd689383aff543d0c2f1c757eeb..1d352dc4f25265276e594ebeea0f112f419e21e4 100644
--- a/extensions/typescript-language-features/src/features/implementationsCodeLens.ts
+++ b/extensions/typescript-language-features/src/features/implementationsCodeLens.ts
@@ -78,7 +78,7 @@ export function register(
 	selector: vscode.DocumentSelector,
 	modeId: string,
 	client: ITypeScriptServiceClient,
-	cachedResponse: CachedNavTreeResponse,
+	cachedResponse: CachedResponse<Proto.NavTreeResponse>,
 ) {
 	return new VersionDependentRegistration(client, API.v220, () =>
 		new ConfigurationDependentRegistration(modeId, 'implementationsCodeLens.enabled', () => {
diff --git a/extensions/typescript-language-features/src/features/referencesCodeLens.ts b/extensions/typescript-language-features/src/features/referencesCodeLens.ts
index febbf569086d518185bcb7abe98423ff89026d74..2fecabafb5befeb839e03a4e3b58dc889fbe3ff7 100644
--- a/extensions/typescript-language-features/src/features/referencesCodeLens.ts
+++ b/extensions/typescript-language-features/src/features/referencesCodeLens.ts
@@ -90,7 +90,7 @@ export function register(
 	selector: vscode.DocumentSelector,
 	modeId: string,
 	client: ITypeScriptServiceClient,
-	cachedResponse: CachedNavTreeResponse,
+	cachedResponse: CachedResponse<Proto.NavTreeResponse>,
 ) {
 	return new VersionDependentRegistration(client, API.v206, () =>
 		new ConfigurationDependentRegistration(modeId, 'referencesCodeLens.enabled', () => {
diff --git a/extensions/typescript-language-features/src/languageProvider.ts b/extensions/typescript-language-features/src/languageProvider.ts
index a7ead5a909ea2c0b6f1873166274f633b5545496..e447baf09a2d7a43da59b7f21b236966faf70381 100644
--- a/extensions/typescript-language-features/src/languageProvider.ts
+++ b/extensions/typescript-language-features/src/languageProvider.ts
@@ -5,7 +5,7 @@
 
 import { basename } from 'path';
 import * as vscode from 'vscode';
-import { CachedNavTreeResponse } from './features/baseCodeLensProvider';
+import { CachedResponse } from './features/baseCodeLensProvider';
 import { DiagnosticKind } from './features/diagnostics';
 import FileConfigurationManager from './features/fileConfigurationManager';
 import TypeScriptServiceClient from './typescriptServiceClient';
@@ -53,7 +53,7 @@ export default class LanguageProvider extends Disposable {
 	private async registerProviders(): Promise<void> {
 		const selector = this.documentSelector;
 
-		const cachedResponse = new CachedNavTreeResponse();
+		const cachedResponse = new CachedResponse();
 
 		this._register((await import('./features/completions')).register(selector, this.description.id, this.client, this.typingsStatus, this.fileConfigurationManager, this.commandManager, this.onCompletionAccepted));
 		this._register((await import('./features/definitions')).register(selector, this.client));