diff --git a/atom/browser/web_view_manager.cc b/atom/browser/web_view_manager.cc
index a1c5d898dbbb..02d40160fa60 100644
--- a/atom/browser/web_view_manager.cc
+++ b/atom/browser/web_view_manager.cc
@@ -77,7 +77,7 @@ WebViewManager* WebViewManager::GetWebViewManager(
   auto context = web_contents->GetBrowserContext();
   if (context) {
     auto manager = context->GetGuestManager();
-    return static_cast<atom::WebViewManager*>(manager);
+    return static_cast<WebViewManager*>(manager);
   } else {
     return nullptr;
   }