diff --git a/data/ui/window.ui b/data/ui/window.ui
index 811a38ff..cb5bf68c 100644
--- a/data/ui/window.ui
+++ b/data/ui/window.ui
@@ -364,7 +364,7 @@
             <property name="can_focus">True</property>
             <property name="relief">none</property>
             <property name="receives_default">True</property>
-            <signal name="clicked" handler="open_source_dialog" object="GcalWindow" swapped="no" />
+            <signal name="clicked" handler="show_source_dialog" object="GcalWindow" swapped="no" />
             <child>
               <object class="GtkBox" id="add_button_box">
                 <property name="visible">True</property>