From f1ffedc3fadbea339ffe2cce9ac46926bdfebb6e Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 4 Mar 2023 17:13:40 +0900
Subject: [PATCH] vm.c: kdict may be converted to a normal argument; fix #5944

---
 src/vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vm.c b/src/vm.c
index 250eb6430..44d1695e2 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1988,7 +1988,7 @@ RETRY_TRY_BLOCK:
 
        /* no other args */
       if ((a & ~0x7c0001) == 0 && argc < 15 && MRB_PROC_STRICT_P(proc)) {
-        if (argc != m1) {
+        if (argc+(ci->nk==15) != m1) { /* count kdict too */
           argnum_error(mrb, m1);
           goto L_RAISE;
         }