diff --git a/lsp-sample/.vscodeignore b/lsp-sample/.vscodeignore
index 29882b9e..2a6b6a99 100644
--- a/lsp-sample/.vscodeignore
+++ b/lsp-sample/.vscodeignore
@@ -11,4 +11,5 @@ client/node_modules/**
 !client/node_modules/vscode-languageclient/**
 !client/node_modules/vscode-languageserver-protocol/**
 !client/node_modules/vscode-languageserver-types/**
-!client/node_modules/semver/**
+!client/node_modules/{minimatch,brace-expansion,concat-map,balanced-match}/**
+!client/node_modules/{semver,lru-cache,yallist}/**
\ No newline at end of file
diff --git a/lsp-sample/client/src/extension.ts b/lsp-sample/client/src/extension.ts
index 546f4277..60923cfd 100644
--- a/lsp-sample/client/src/extension.ts
+++ b/lsp-sample/client/src/extension.ts
@@ -17,16 +17,16 @@ let client: LanguageClient;
 
 export function activate(context: ExtensionContext) {
 	// The server is implemented in node
-	let serverModule = context.asAbsolutePath(
+	const serverModule = context.asAbsolutePath(
 		path.join('server', 'out', 'server.js')
 	);
 	// The debug options for the server
 	// --inspect=6009: runs the server in Node's Inspector mode so VS Code can attach to the server for debugging
-	let debugOptions = { execArgv: ['--nolazy', '--inspect=6009'] };
+	const debugOptions = { execArgv: ['--nolazy', '--inspect=6009'] };
 
 	// If the extension is launched in debug mode then the debug server options are used
 	// Otherwise the run options are used
-	let serverOptions: ServerOptions = {
+	const serverOptions: ServerOptions = {
 		run: { module: serverModule, transport: TransportKind.ipc },
 		debug: {
 			module: serverModule,
@@ -36,7 +36,7 @@ export function activate(context: ExtensionContext) {
 	};
 
 	// Options to control the language client
-	let clientOptions: LanguageClientOptions = {
+	const clientOptions: LanguageClientOptions = {
 		// Register the server for plain text documents
 		documentSelector: [{ scheme: 'file', language: 'plaintext' }],
 		synchronize: {