diff --git a/data/ui/window.ui b/data/ui/window.ui
index 0a3d90bf..f9e6cbbb 100644
--- a/data/ui/window.ui
+++ b/data/ui/window.ui
@@ -267,6 +267,23 @@
             <property name="pack_type">end</property>
           </packing>
         </child>
+        <child>
+          <object class="GtkMenuButton" id="calendars_button">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="receives_default">True</property>
+            <child>
+              <object class="GtkImage" id="calendars_button_image">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="icon_name">x-office-calendar-symbolic</property>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="pack_type">end</property>
+          </packing>
+        </child>
         <child>
           <object class="GtkToggleButton" id="search_button">
             <property name="visible">True</property>