diff --git a/components/exo/wm_helper.h b/components/exo/wm_helper.h
index 8a8332d0833e10..025d9f4979ce55 100644
--- a/components/exo/wm_helper.h
+++ b/components/exo/wm_helper.h
@@ -5,8 +5,6 @@
 #ifndef COMPONENTS_EXO_WM_HELPER_H_
 #define COMPONENTS_EXO_WM_HELPER_H_
 
-#include <memory>
-
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "ui/aura/client/drag_drop_delegate.h"