diff --git a/data/ui/window.ui b/data/ui/window.ui
index 757f2d6e..16c80c2e 100644
--- a/data/ui/window.ui
+++ b/data/ui/window.ui
@@ -347,5 +347,6 @@
     <property name="visible">False</property>
     <property name="transient_for">GcalWindow</property>
     <signal name="response" handler="edit_dialog_closed" object="GcalWindow" swapped="no"/>
+    <signal name="delete-event" handler="gtk_widget_hide_on_delete" object="GcalWindow" swapped="no"/>
   </object>
 </interface>