diff --git a/tuhi.py b/tuhi.py
index b07ef41..5f41da7 100755
--- a/tuhi.py
+++ b/tuhi.py
@@ -154,10 +154,21 @@ class Tuhi(GObject.Object):
     def _on_stop_pairing_requested(self, dbus_server):
         self.bluez.stop_discovery()
 
+    @classmethod
+    def _is_pairing_device(cls, bluez_device):
+        if bluez_device.vendor_id != WACOM_COMPANY_ID:
+            return False
+
+        manufacturer_data = bluez_device.get_manufacturer_data(WACOM_COMPANY_ID)
+        return manufacturer_data is not None and len(manufacturer_data) == 4
+
     def _on_bluez_device_added(self, manager, bluez_device):
         if bluez_device.vendor_id != WACOM_COMPANY_ID:
             return
 
+        if Tuhi._is_pairing_device(bluez_device):
+            return
+
         tuhi_dbus_device = self.server.create_device(bluez_device)
         d = TuhiDevice(bluez_device, tuhi_dbus_device)
         self.devices[bluez_device.address] = d
diff --git a/tuhi/ble.py b/tuhi/ble.py
index 1ada0ab..1f0e01d 100755
--- a/tuhi/ble.py
+++ b/tuhi/ble.py
@@ -140,6 +140,12 @@ class BlueZDevice(GObject.Object):
         return (self.interface.get_cached_property('Connected').unpack() and
                 self.interface.get_cached_property('ServicesResolved').unpack())
 
+    def get_manufacturer_data(self, vendor_id):
+        md = self.interface.get_cached_property('ManufacturerData')
+        if md is not None and vendor_id in md.keys():
+            return md[vendor_id]
+        return None
+
     def resolve(self, om):
         """
         Resolve the GattServices and GattCharacteristics. This function does