diff --git a/config/jest.config.js b/config/jest.config.js
index e8a5aec05..ab9d688b9 100644
--- a/config/jest.config.js
+++ b/config/jest.config.js
@@ -12,7 +12,7 @@ if (fs.existsSync(appEnvConfigPathJs)) {
   envConfigPath = appEnvConfigPathJs;
 } else if (fs.existsSync(appEnvConfigPathJsx)) {
   envConfigPath = appEnvConfigPathJsx;
-};
+}
 
 module.exports = {
   testURL: 'http://localhost/',
diff --git a/config/webpack.dev.config.js b/config/webpack.dev.config.js
index 918b65086..7a44040f6 100644
--- a/config/webpack.dev.config.js
+++ b/config/webpack.dev.config.js
@@ -19,16 +19,16 @@ const resolvePrivateEnvConfig = require('../lib/resolvePrivateEnvConfig');
 const getLocalAliases = require('./getLocalAliases');
 
 // Provides the env.config object that is available in local development so that devserver port number
-// can be assigned below. If no env.config exists (JS or JSX), then it provides an empty object. 
+// can be assigned below. If no env.config exists (JS or JSX), then it provides an empty object.
 let envConfig = {};
-const envConfigPathJs = path.resolve(process.cwd(),'./env.config.js');
+const envConfigPathJs = path.resolve(process.cwd(), './env.config.js');
 const envConfigPathJsx = path.resolve(process.cwd(), './env.config.jsx');
 
 if (fs.existsSync(envConfigPathJs)) {
   envConfig = require(envConfigPathJs);
 } else if (fs.existsSync(envConfigPathJsx)) {
   envConfig = require(envConfigPathJsx);
-};
+}
 
 // Add process env vars. Currently used only for setting the
 // server port and the publicPath
diff --git a/config/webpack.prod.config.js b/config/webpack.prod.config.js
index 4cd1e42ee..bdd069ba4 100644
--- a/config/webpack.prod.config.js
+++ b/config/webpack.prod.config.js
@@ -39,9 +39,9 @@ if (envConfigPath) {
   const envConfigFilename = envConfigPath.slice(envConfigPath.indexOf('env.config'));
   fs.copyFileSync(envConfigPath, envConfigFilename);
 
-  let newConfigFilepath = path.resolve(process.cwd(), envConfigFilename);
+  const newConfigFilepath = path.resolve(process.cwd(), envConfigFilename);
   envConfig = require(newConfigFilepath);
-};
+}
 
 // Add process env vars. Currently used only for setting the PUBLIC_PATH.
 dotenv.config({