1 files changed, 2 insertions, 2 deletions
diff --git a/proc.c b/proc.c
index bfde0d9abb..09b288fecd 100644
--- a/proc.c
+++ b/proc.c
@@ -1050,7 +1050,7 @@ rb_iseq_min_max_arity(const rb_iseq_t *iseq, int *max)
 {
     *max = ISEQ_BODY(iseq)->param.flags.has_rest == FALSE ?
       ISEQ_BODY(iseq)->param.lead_num + ISEQ_BODY(iseq)->param.opt_num + ISEQ_BODY(iseq)->param.post_num +
-      (ISEQ_BODY(iseq)->param.flags.has_kw == TRUE || ISEQ_BODY(iseq)->param.flags.has_kwrest == TRUE)
+      (ISEQ_BODY(iseq)->param.flags.has_kw == TRUE || ISEQ_BODY(iseq)->param.flags.has_kwrest == TRUE || ISEQ_BODY(iseq)->param.flags.forwardable == TRUE)
       : UNLIMITED_ARGUMENTS;
     return ISEQ_BODY(iseq)->param.lead_num + ISEQ_BODY(iseq)->param.post_num + (ISEQ_BODY(iseq)->param.flags.has_kw && ISEQ_BODY(iseq)->param.keyword->required_num > 0);
 }
@@ -3467,7 +3467,7 @@ proc_binding(VALUE self)
                 env = VM_ENV_ENVVAL_PTR(block->as.captured.ep);
                 env = env_clone(env, method_cref(method));
                 /* set empty iseq */
-                empty = rb_iseq_new(NULL, name, name, Qnil, 0, ISEQ_TYPE_TOP);
+                empty = rb_iseq_new(Qnil, name, name, Qnil, 0, ISEQ_TYPE_TOP);
                 RB_OBJ_WRITE(env, &env->iseq, empty);
                 break;
             }