diff --git a/packages/react-devtools-shell/src/devtools.js b/packages/react-devtools-shell/src/devtools.js
index 0f337793274fa..fed3834f62b46 100644
--- a/packages/react-devtools-shell/src/devtools.js
+++ b/packages/react-devtools-shell/src/devtools.js
@@ -24,7 +24,7 @@ const container = ((document.getElementById('devtools'): any): HTMLElement);
 let isTestAppMounted = true;
 
 const mountButton = ((document.getElementById(
-  'mountButton'
+  'mountButton',
 ): any): HTMLButtonElement);
 mountButton.addEventListener('click', function() {
   if (isTestAppMounted) {
@@ -58,7 +58,7 @@ inject('dist/app.js', () => {
           showTabBar: true,
           showWelcomeToTheNewDevToolsDialog: true,
           warnIfLegacyBackendDetected: true,
-        })
+        }),
       );
     },
 
diff --git a/packages/react-devtools-shell/webpack.config.js b/packages/react-devtools-shell/webpack.config.js
index 09d99b0d28d4c..91bdf2fc4fd06 100644
--- a/packages/react-devtools-shell/webpack.config.js
+++ b/packages/react-devtools-shell/webpack.config.js
@@ -32,7 +32,7 @@ const config = {
     alias: {
       'react-devtools-inline': resolve(
         root,
-        'packages/react-devtools-inline/src/'
+        'packages/react-devtools-inline/src/',
       ),
       src: resolve(root, 'src'),
     },