1 files changed, 13 insertions, 12 deletions
diff --git a/py/objstrunicode.c b/py/objstrunicode.c
index fef0353683..afef1498e9 100644
--- a/py/objstrunicode.c
+++ b/py/objstrunicode.c
@@ -229,18 +229,19 @@ STATIC mp_obj_t str_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
     }
 }
 
-const mp_obj_type_t mp_type_str = {
-    { &mp_type_type },
-    .name = MP_QSTR_str,
-    .print = uni_print,
-    .make_new = mp_obj_str_make_new,
-    .unary_op = uni_unary_op,
-    .binary_op = mp_obj_str_binary_op,
-    .subscr = str_subscr,
-    .getiter = mp_obj_new_str_iterator,
-    .buffer = mp_obj_str_get_buffer,
-    .locals_dict = (mp_obj_dict_t *)&mp_obj_str_locals_dict,
-};
+MP_DEFINE_CONST_OBJ_TYPE(
+    mp_type_str,
+    MP_QSTR_str,
+    MP_TYPE_FLAG_NONE,
+    mp_obj_str_make_new,
+    print, uni_print,
+    unary_op, uni_unary_op,
+    binary_op, mp_obj_str_binary_op,
+    subscr, str_subscr,
+    getiter, mp_obj_new_str_iterator,
+    buffer, mp_obj_str_get_buffer,
+    locals_dict, (mp_obj_dict_t *)&mp_obj_str_locals_dict
+    );
 
 /******************************************************************************/
 /* str iterator                                                               */