diff --git a/atom/browser/api/atom_api_web_contents.h b/atom/browser/api/atom_api_web_contents.h
index 938a54159759..6151110887aa 100644
--- a/atom/browser/api/atom_api_web_contents.h
+++ b/atom/browser/api/atom_api_web_contents.h
@@ -44,7 +44,7 @@ class WebContents : public mate::TrackableObject<WebContents>,
                     public content::WebContentsObserver {
  public:
   enum Type {
-    BACKGROUND_PAGE, // A DevTools extension background page.
+    BACKGROUND_PAGE,  // A DevTools extension background page.
     BROWSER_WINDOW,  // Used by BrowserWindow.
     REMOTE,  // Thin wrap around an existing WebContents.
     WEB_VIEW,  // Used by <webview>.