diff --git a/0001-Add-missing-include-cstdint-for-u-int64_t.patch b/0001-Add-missing-include-cstdint-for-u-int64_t.patch
new file mode 100644
index 0000000..ba73164
--- /dev/null
+++ b/0001-Add-missing-include-cstdint-for-u-int64_t.patch
@@ -0,0 +1,26 @@
+From c7744bb133496cd7ac04688f345646d505e1bf52 Mon Sep 17 00:00:00 2001
+From: "Benjamin A. Beasley" <code@musicinmybrain.net>
+Date: Thu, 19 Jan 2023 09:12:22 -0500
+Subject: [PATCH] Add missing #include <cstdint> for (u)int64_t
+
+Fixes failure to compile on GCC 13.
+---
+ src/library/poly1/givdegree.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/library/poly1/givdegree.h b/src/library/poly1/givdegree.h
+index 3753a425..eb85a0dd 100644
+--- a/src/library/poly1/givdegree.h
++++ b/src/library/poly1/givdegree.h
+@@ -19,6 +19,8 @@
+ #ifndef __GIVARO_poly1degree_H
+ #define __GIVARO_poly1degree_H
+ 
++#include <cstdint>
++
+ #include <iostream>
+ 
+ namespace Givaro {
+-- 
+2.40.0
+
diff --git a/givaro.changes b/givaro.changes
index e398da9..da817e3 100644
--- a/givaro.changes
+++ b/givaro.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Mar 28 08:47:39 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Add 0001-Add-missing-include-cstdint-for-u-int64_t.patch
+
 -------------------------------------------------------------------
 Tue Dec 14 10:39:12 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/givaro.spec b/givaro.spec
index 959c4cd..f011d56 100644
--- a/givaro.spec
+++ b/givaro.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package givaro
 #
-# Copyright (c) 2021 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -28,6 +28,7 @@ URL:            https://casys.gricad-pages.univ-grenoble-alpes.fr/givaro/
 #Git-Clone:	https://github.com/linbox-team/givaro
 Source:         https://github.com/linbox-team/givaro/releases/download/v%version/%name-%version.tar.gz
 Patch1:         givaro-doc-no-build-time.patch
+Patch2:         0001-Add-missing-include-cstdint-for-u-int64_t.patch
 # Old doxygen does not properly handle symlink recursion
 BuildRequires:  doxygen >= 1.5.7.1
 BuildRequires:  fdupes