diff --git a/atom/browser/native_window_observer.h b/atom/browser/native_window_observer.h
index 7f1f5aace82a..3b8d86e6fb0f 100644
--- a/atom/browser/native_window_observer.h
+++ b/atom/browser/native_window_observer.h
@@ -6,7 +6,6 @@
 #define ATOM_BROWSER_NATIVE_WINDOW_OBSERVER_H_
 
 #include <string>
-#include <vector>
 
 #include "base/strings/string16.h"
 #include "base/values.h"