diff --git a/src/typings/http-proxy-agent.d.ts b/src/typings/http-proxy-agent.d.ts
index ffd3e0185900d0585e8eeee5e0c1663a6be54f56..3d0071543b488067fe42c5a87cd645fb1f3296d7 100644
--- a/src/typings/http-proxy-agent.d.ts
+++ b/src/typings/http-proxy-agent.d.ts
@@ -5,8 +5,16 @@
 
 declare module 'http-proxy-agent' {
 
+	interface IHttpProxyAgentOptions {
+		host: string;
+		port: number;
+		auth?: string;
+	}
+
 	class HttpProxyAgent {
 		constructor(proxy: string);
+		constructor(opts: IHttpProxyAgentOptions);
 	}
+
 	export = HttpProxyAgent;
 }
\ No newline at end of file
diff --git a/src/typings/https-proxy-agent.d.ts b/src/typings/https-proxy-agent.d.ts
index b4be3e030b58b4b0ac0689c282e8289710a59c0a..384bee1d6c59f80894e1f2e70971ca88edff4ee7 100644
--- a/src/typings/https-proxy-agent.d.ts
+++ b/src/typings/https-proxy-agent.d.ts
@@ -10,6 +10,7 @@ declare module 'https-proxy-agent' {
 	interface IHttpsProxyAgentOptions extends tls.ConnectionOptions {
 		host: string;
 		port: number;
+		auth?: string;
 		secureProxy?: boolean;
 		secureEndpoint?: boolean;
 	}
diff --git a/src/vs/base/node/proxy.ts b/src/vs/base/node/proxy.ts
index 69940e0bacb0f4d883648aa6acd29d8aadd39fd4..3a0ab3673294c3c802b55da165b020b4e542bd28 100644
--- a/src/vs/base/node/proxy.ts
+++ b/src/vs/base/node/proxy.ts
@@ -7,6 +7,7 @@
 
 import { Url, parse as parseUrl } from 'url';
 import { isBoolean } from 'vs/base/common/types';
+import { assign } from 'vs/base/common/objects';
 import HttpProxyAgent = require('http-proxy-agent');
 import HttpsProxyAgent = require('https-proxy-agent');
 
@@ -39,13 +40,12 @@ export function getProxyAgent(rawRequestURL: string, options: IOptions = {}): an
 		return null;
 	}
 
-	if (requestURL.protocol === 'http:') {
-		return new HttpProxyAgent(proxyURL);
-	}
-
-	return new HttpsProxyAgent({
+	const opts = {
 		host: proxyEndpoint.hostname,
 		port: Number(proxyEndpoint.port),
+		auth: proxyEndpoint.auth,
 		rejectUnauthorized: isBoolean(options.strictSSL) ? options.strictSSL : true
-	});
+	};
+
+	return requestURL.protocol === 'http:' ? new HttpProxyAgent(opts) : new HttpsProxyAgent(opts);
 }
\ No newline at end of file