diff --git a/googlemock/docs/cook_book.md b/googlemock/docs/cook_book.md
index 4dbfbe09..42e29060 100644
--- a/googlemock/docs/cook_book.md
+++ b/googlemock/docs/cook_book.md
@@ -2686,7 +2686,7 @@ TEST(EventQueueTest, EnqueueEventTest) {
   EventQueue event_queue(&mock_event_dispatcher);
 
   const int32 kEventId = 321;
-  Notification done;
+  absl::Notification done;
   EXPECT_CALL(mock_event_dispatcher, DispatchEvent(kEventId))
       .WillOnce(Notify(&done));