diff --git input_method_win.cc input_method_win.cc
index 6961683..1f8c4b2 100644
--- input_method_win.cc
+++ input_method_win.cc
@@ -601,7 +601,9 @@ bool InputMethodWin::IsWindowFocused(const TextInputClient* client) const {
   // receiving keyboard input as long as it is an active window. This works well
   // even when the |attached_window_handle| becomes active but has not received
   // WM_FOCUS yet.
-  return attached_window_handle && GetActiveWindow() == attached_window_handle;
+  // With CEF |attached_window_handle| may be a child window.
+  return attached_window_handle &&
+         GetActiveWindow() == ::GetAncestor(attached_window_handle, GA_ROOT);
 }
 
 bool InputMethodWin::DispatchFabricatedKeyEvent(const ui::KeyEvent& event) {