diff --git a/clutter/x11/clutter-device-manager-xi2.c b/clutter/x11/clutter-device-manager-xi2.c
index 8bedbd47e..f9614f5dd 100644
--- a/clutter/x11/clutter-device-manager-xi2.c
+++ b/clutter/x11/clutter-device-manager-xi2.c
@@ -319,7 +319,7 @@ add_device (ClutterDeviceManagerXI2 *manager_xi2,
    */
   g_hash_table_replace (manager_xi2->devices_by_id,
                         GINT_TO_POINTER (info->deviceid),
-                        g_object_ref (device));
+                        device);
 
   if (info->use == XIMasterPointer ||
       info->use == XIMasterKeyboard)