1 files changed, 1 insertions, 1 deletions
diff --git a/py/obj.h b/py/obj.h
index 1b926ce144..1169a9095e 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -607,7 +607,7 @@ static inline mp_obj_t mp_obj_new_bool(mp_int_t x) { return x ? mp_const_true :
 mp_obj_t mp_obj_new_cell(mp_obj_t obj);
 mp_obj_t mp_obj_new_int(mp_int_t value);
 mp_obj_t mp_obj_new_int_from_uint(mp_uint_t value);
-mp_obj_t mp_obj_new_int_from_str_len(const char **str, mp_uint_t len, bool neg, mp_uint_t base);
+mp_obj_t mp_obj_new_int_from_str_len(const char **str, size_t len, bool neg, unsigned int base);
 mp_obj_t mp_obj_new_int_from_ll(long long val); // this must return a multi-precision integer object (or raise an overflow exception)
 mp_obj_t mp_obj_new_int_from_ull(unsigned long long val); // this must return a multi-precision integer object (or raise an overflow exception)
 mp_obj_t mp_obj_new_str(const char* data, size_t len, bool make_qstr_if_not_already);