diff --git a/lib/proxy_util.js b/lib/proxy_util.js
index be9c0c9f6..50a198b1d 100644
--- a/lib/proxy_util.js
+++ b/lib/proxy_util.js
@@ -220,7 +220,7 @@ exports.hideEnvironmentProxy = function () {
 };
 
 function saveProxyInfoInList(envVar) {
-  const proxyEnv = process.env[envVar]
+  const proxyEnv = process.env[envVar];
   envProxyList.push(process.env[envVar]);
   delete process.env[envVar];