py: Use MP_OBJ_NULL instead of NULL in a few places.

1 files changed, 1 insertions, 1 deletions

diff --git a/py/objtype.c b/py/objtype.c
index 89ace5460..cb6b95733 100644
--- a/py/objtype.c
+++ b/py/objtype.c
@@ -292,7 +292,7 @@ mp_obj_t instance_make_new(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, c
     o = new_ret;
 
     // now call Python class __init__ function with all args
-    init_fn[0] = init_fn[1] = NULL;
+    init_fn[0] = init_fn[1] = MP_OBJ_NULL;
     lookup.obj = o;
     lookup.attr = MP_QSTR___init__;
     lookup.meth_offset = 0;