1 files changed, 2 insertions, 0 deletions
diff --git a/py/runtime.h b/py/runtime.h
index 1eef99d2ff..7215cc8890 100644
--- a/py/runtime.h
+++ b/py/runtime.h
@@ -1,3 +1,5 @@
+void rt_check_nargs(int n_args, machine_uint_t n_args_min, machine_uint_t n_args_max, int n_kw, bool is_kw);
+
 int rt_is_true(mp_obj_t arg);
 
 mp_obj_t rt_load_const_dec(qstr qstr);