diff --git a/Userland/Services/Taskbar/TaskbarWindow.cpp b/Userland/Services/Taskbar/TaskbarWindow.cpp
index b2b027e4d6f38472888c6669bf8bfc37a1f09c82..be2aa5009381e44641d6e6aadb27ee30acf084b8 100644
--- a/Userland/Services/Taskbar/TaskbarWindow.cpp
+++ b/Userland/Services/Taskbar/TaskbarWindow.cpp
@@ -220,6 +220,7 @@ void TaskbarWindow::update_window_button(::Window& window, bool show_as_active)
     if (!button)
         return;
     button->set_text(window.title());
+    button->set_tooltip(window.title());
     button->set_checked(show_as_active);
 }