1 files changed, 9 insertions, 8 deletions
diff --git a/extmod/machine_signal.c b/extmod/machine_signal.c
index cf7550a2e0..818bc01c27 100644
--- a/extmod/machine_signal.c
+++ b/extmod/machine_signal.c
@@ -172,13 +172,14 @@ STATIC const mp_pin_p_t signal_pin_p = {
     .ioctl = signal_ioctl,
 };
 
-const mp_obj_type_t machine_signal_type = {
-    { &mp_type_type },
-    .name = MP_QSTR_Signal,
-    .make_new = signal_make_new,
-    .call = signal_call,
-    .protocol = &signal_pin_p,
-    .locals_dict = (void *)&signal_locals_dict,
-};
+MP_DEFINE_CONST_OBJ_TYPE(
+    machine_signal_type,
+    MP_QSTR_Signal,
+    MP_TYPE_FLAG_NONE,
+    signal_make_new,
+    call, signal_call,
+    protocol, &signal_pin_p,
+    locals_dict, (void *)&signal_locals_dict
+    );
 
 #endif // MICROPY_PY_MACHINE