diff --git a/test/example-advertisement b/test/example-advertisement
index 26c3578..d9b5b42 100755
--- a/test/example-advertisement
+++ b/test/example-advertisement
@@ -53,6 +53,7 @@ class Advertisement(dbus.service.Object):
         self.service_data = None
         self.local_name = None
         self.include_tx_power = None
+        self.data = None
         dbus.service.Object.__init__(self, bus, self.path)
 
     def get_properties(self):
@@ -74,6 +75,10 @@ class Advertisement(dbus.service.Object):
             properties['LocalName'] = dbus.String(self.local_name)
         if self.include_tx_power is not None:
             properties['IncludeTxPower'] = dbus.Boolean(self.include_tx_power)
+
+        if self.data is not None:
+            properties['Data'] = dbus.Dictionary(
+                self.data, signature='yv')
         return {LE_ADVERTISEMENT_IFACE: properties}
 
     def get_path(self):
@@ -104,6 +109,11 @@ class Advertisement(dbus.service.Object):
             self.local_name = ""
         self.local_name = dbus.String(name)
 
+    def add_data(self, ad_type, data):
+        if not self.data:
+            self.data = dbus.Dictionary({}, signature='yv')
+        self.data[ad_type] = dbus.Array(data, signature='y')
+
     @dbus.service.method(DBUS_PROP_IFACE,
                          in_signature='s',
                          out_signature='a{sv}')
@@ -130,6 +140,7 @@ class TestAdvertisement(Advertisement):
         self.add_service_data('9999', [0x00, 0x01, 0x02, 0x03, 0x04])
         self.add_local_name('TestAdvertisement')
         self.include_tx_power = True
+        self.add_data(0x26, [0x01, 0x01, 0x00])
 
 
 def register_ad_cb():