diff --git a/py/compile.c b/py/compile.c
index 946c892..b9979af 100644
--- a/py/compile.c
+++ b/py/compile.c
@@ -111,8 +111,8 @@
 STATIC const mp_map_t mp_constants_map = {
     .all_keys_are_qstrs = 1,
     .table_is_fixed_array = 1,
-    .used = ARRAY_SIZE(mp_constants_table),
-    .alloc = ARRAY_SIZE(mp_constants_table),
+    .used = MP_ARRAY_SIZE(mp_constants_table),
+    .alloc = MP_ARRAY_SIZE(mp_constants_table),
     .table = (mp_map_elem_t*)mp_constants_table,
 };