diff --git a/res/values/config.xml b/res/values/config.xml
index 393a197..648a50c 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -76,6 +76,7 @@
     <string name="taskbar_model_callbacks_factory_class" translatable="false"></string>
     <string name="taskbar_view_callbacks_factory_class" translatable="false"></string>
     <string name="launcher_restore_event_logger_class" translatable="false"></string>
+    <string name="taskbar_edu_tooltip_controller_class" translatable="false"></string>
     <!--  Used for determining category of a widget presented in widget recommendations. -->
     <string name="widget_recommendation_category_provider_class" translatable="false"></string>
     <string name="api_wrapper_class" translatable="false"></string>