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-rw-r--r--extmod/machine_signal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/extmod/machine_signal.c b/extmod/machine_signal.c
index 3f9f5af947..c494490b60 100644
--- a/extmod/machine_signal.c
+++ b/extmod/machine_signal.c
@@ -49,7 +49,7 @@ STATIC mp_obj_t signal_make_new(const mp_obj_type_t *type, size_t n_args, size_t
#if defined(MICROPY_PY_MACHINE_PIN_MAKE_NEW)
mp_pin_p_t *pin_p = NULL;
- if (MP_OBJ_IS_OBJ(pin)) {
+ if (mp_obj_is_obj(pin)) {
mp_obj_base_t *pin_base = (mp_obj_base_t*)MP_OBJ_TO_PTR(args[0]);
pin_p = (mp_pin_p_t*)pin_base->type->protocol;
}