diff --git a/data/dbus-interfaces/org.gnome.Shell.CalendarServer.xml b/data/dbus-interfaces/org.gnome.Shell.CalendarServer.xml
new file mode 100644
index 000000000..c19883095
--- /dev/null
+++ b/data/dbus-interfaces/org.gnome.Shell.CalendarServer.xml
@@ -0,0 +1,12 @@
+<node>
+  <interface name="org.gnome.Shell.CalendarServer">
+    <method name="GetEvents">
+      <arg type="x" direction="in" />
+      <arg type="x" direction="in" />
+      <arg type="b" direction="in" />
+      <arg type="a(sssbxxa{sv})" direction="out" />
+    </method>
+    <property name="HasCalendars" type="b" access="read" />
+    <signal name="Changed" />
+  </interface>
+</node>
diff --git a/data/gnome-shell-dbus-interfaces.gresource.xml b/data/gnome-shell-dbus-interfaces.gresource.xml
index ba148ca1f..3352e0dcd 100644
--- a/data/gnome-shell-dbus-interfaces.gresource.xml
+++ b/data/gnome-shell-dbus-interfaces.gresource.xml
@@ -39,6 +39,7 @@
     <file preprocess="xml-stripblanks">org.gnome.SettingsDaemon.Rfkill.xml</file>
     <file preprocess="xml-stripblanks">org.gnome.SettingsDaemon.Wacom.xml</file>
     <file preprocess="xml-stripblanks">org.gnome.Shell.AudioDeviceSelection.xml</file>
+    <file preprocess="xml-stripblanks">org.gnome.Shell.CalendarServer.xml</file>
     <file preprocess="xml-stripblanks">org.gnome.Shell.Extensions.xml</file>
     <file preprocess="xml-stripblanks">org.gnome.Shell.Introspect.xml</file>
     <file preprocess="xml-stripblanks">org.gnome.Shell.HotplugSniffer.xml</file>
diff --git a/js/ui/calendar.js b/js/ui/calendar.js
index 28e0d86d2..cd3e879c4 100644
--- a/js/ui/calendar.js
+++ b/js/ui/calendar.js
@@ -9,6 +9,8 @@ const MessageTray = imports.ui.messageTray;
 const Mpris = imports.ui.mpris;
 const Util = imports.misc.util;
 
+const { loadInterfaceXML } = imports.misc.fileUtils;
+
 var MSECS_IN_DAY = 24 * 60 * 60 * 1000;
 var SHOW_WEEKDATE_KEY = 'show-weekdate';
 var ELLIPSIS_CHAR = '\u2026';
@@ -121,19 +123,7 @@ var EmptyEventSource = class EmptyEventSource {
 };
 Signals.addSignalMethods(EmptyEventSource.prototype);
 
-const CalendarServerIface = `
-<node>
-<interface name="org.gnome.Shell.CalendarServer">
-<method name="GetEvents">
-    <arg type="x" direction="in" />
-    <arg type="x" direction="in" />
-    <arg type="b" direction="in" />
-    <arg type="a(sssbxxa{sv})" direction="out" />
-</method>
-<property name="HasCalendars" type="b" access="read" />
-<signal name="Changed" />
-</interface>
-</node>`;
+const CalendarServerIface = loadInterfaceXML('org.gnome.Shell.CalendarServer');
 
 const CalendarServerInfo  = Gio.DBusInterfaceInfo.new_for_xml(CalendarServerIface);