1 files changed, 1 insertions, 0 deletions
diff --git a/py/obj.h b/py/obj.h
index 0e254b258..089b953d7 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -308,6 +308,7 @@ extern const mp_obj_type_t mp_type_filter;
 extern const mp_obj_type_t mp_type_dict;
 extern const mp_obj_type_t mp_type_range;
 extern const mp_obj_type_t mp_type_set;
+extern const mp_obj_type_t mp_type_frozenset;
 extern const mp_obj_type_t mp_type_slice;
 extern const mp_obj_type_t mp_type_zip;
 extern const mp_obj_type_t mp_type_array;