From e9b9cbf090f3cde59867a096024df487175fe68f Mon Sep 17 00:00:00 2001
From: Sergey B Kirpichev <skirpichev@gmail.com>
Date: Thu, 19 Sep 2024 06:39:10 +0300
Subject: [PATCH] +1

---
 src/gmpy2_convert_gmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gmpy2_convert_gmp.c b/src/gmpy2_convert_gmp.c
index b701325c..c03a334f 100644
--- a/src/gmpy2_convert_gmp.c
+++ b/src/gmpy2_convert_gmp.c
@@ -68,7 +68,7 @@ mpz_set_PyLong(mpz_t z, PyObject *obj)
             if (long_export.value < 0) {
                 mpz_t tmp;
                 mpz_init(tmp);
-                mpz_ui_pow_ui(tmp, 2, 8*sizeof(size_t));
+                mpz_ui_pow_ui(tmp, 2, 64);
                 mpz_sub(z, z, tmp);
                 mpz_clear(tmp);
             }