1 files changed, 3 insertions, 0 deletions
diff --git a/py/runtime.c b/py/runtime.c
index f12b3e6125..01a015340d 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -144,6 +144,9 @@ STATIC const mp_builtin_elem_t builtin_table[] = {
     { MP_QSTR_str, (mp_obj_t)&mp_builtin_str_obj },
     { MP_QSTR_bytearray, (mp_obj_t)&mp_builtin_bytearray_obj },
 
+    // Extra builtins as defined by a port
+    MICROPY_EXTRA_BUILTINS
+
     { MP_QSTR_, MP_OBJ_NULL }, // end of list sentinel
 };