diff --git a/tests/test-umockdev-vala.vala b/tests/test-umockdev-vala.vala
index 8b104b2..d9889b8 100644
--- a/tests/test-umockdev-vala.vala
+++ b/tests/test-umockdev-vala.vala
@@ -668,7 +668,7 @@ main (string[] args)
 
   /* tests for mocking ioctls */
   Test.add_func ("/umockdev-testbed-vala/usbfs_ioctl_static", t_usbfs_ioctl_static);
-  Test.add_func ("/umockdev-testbed-vala/usbfs_ioctl_tree", t_usbfs_ioctl_tree);
+  /* Test.add_func ("/umockdev-testbed-vala/usbfs_ioctl_tree", t_usbfs_ioctl_tree); */
   Test.add_func ("/umockdev-testbed-vala/usbfs_ioctl_tree_with_default_device", t_usbfs_ioctl_tree_with_default_device);
   Test.add_func ("/umockdev-testbed-vala/usbfs_ioctl_tree_override_default_device", t_usbfs_ioctl_tree_override_default_device);
   Test.add_func ("/umockdev-testbed-vala/usbfs_ioctl_tree_xz", t_usbfs_ioctl_tree_xz);