diff --git a/gcc13.patch b/gcc13.patch
new file mode 100644
index 0000000..98ad91d
--- /dev/null
+++ b/gcc13.patch
@@ -0,0 +1,67 @@
+diff -up libfilezilla-0.40.0/lib/libfilezilla/buffer.hpp.gcc13 libfilezilla-0.40.0/lib/libfilezilla/buffer.hpp
+--- libfilezilla-0.40.0/lib/libfilezilla/buffer.hpp.gcc13	2022-02-03 04:53:39.000000000 -0500
++++ libfilezilla-0.40.0/lib/libfilezilla/buffer.hpp	2023-01-19 20:24:31.591144072 -0500
+@@ -5,6 +5,7 @@
+ 
+ #include <vector>
+ #include <type_traits>
++#include <cstdint>
+ 
+ /** \file
+ * \brief Declares fz::buffer
+diff -up libfilezilla-0.40.0/lib/libfilezilla/encode.hpp.gcc13 libfilezilla-0.40.0/lib/libfilezilla/encode.hpp
+--- libfilezilla-0.40.0/lib/libfilezilla/encode.hpp.gcc13	2022-12-12 09:29:22.000000000 -0500
++++ libfilezilla-0.40.0/lib/libfilezilla/encode.hpp	2023-01-19 20:33:47.141503787 -0500
+@@ -5,6 +5,7 @@
+ 
+ #include <string>
+ #include <vector>
++#include <cstdint>
+ 
+ /** \file
+  * \brief Functions to encode/decode strings
+diff -up libfilezilla-0.40.0/lib/libfilezilla/encryption.hpp.gcc13 libfilezilla-0.40.0/lib/libfilezilla/encryption.hpp
+--- libfilezilla-0.40.0/lib/libfilezilla/encryption.hpp.gcc13	2020-08-21 09:35:14.000000000 -0400
++++ libfilezilla-0.40.0/lib/libfilezilla/encryption.hpp	2023-01-19 20:31:56.217038160 -0500
+@@ -14,6 +14,7 @@
+ 
+ #include <vector>
+ #include <string>
++#include <cstdint>
+ 
+ namespace fz {
+ 
+diff -up libfilezilla-0.40.0/lib/libfilezilla/hash.hpp.gcc13 libfilezilla-0.40.0/lib/libfilezilla/hash.hpp
+--- libfilezilla-0.40.0/lib/libfilezilla/hash.hpp.gcc13	2022-02-03 04:53:39.000000000 -0500
++++ libfilezilla-0.40.0/lib/libfilezilla/hash.hpp	2023-01-19 20:34:26.953670916 -0500
+@@ -9,6 +9,7 @@
+ 
+ #include <vector>
+ #include <string>
++#include <cstdint>
+ 
+ namespace fz {
+ 
+diff -up libfilezilla-0.40.0/lib/libfilezilla/nonowning_buffer.hpp.gcc13 libfilezilla-0.40.0/lib/libfilezilla/nonowning_buffer.hpp
+--- libfilezilla-0.40.0/lib/libfilezilla/nonowning_buffer.hpp.gcc13	2022-07-08 09:18:44.000000000 -0400
++++ libfilezilla-0.40.0/lib/libfilezilla/nonowning_buffer.hpp	2023-01-19 20:37:23.008409947 -0500
+@@ -3,6 +3,8 @@
+ 
+ #include "libfilezilla.hpp"
+ 
++#include <cstdint>
++
+ /** \file
+ * \brief Declares fz::nonowning_buffer
+ */
+diff -up libfilezilla-0.40.0/lib/libfilezilla/signature.hpp.gcc13 libfilezilla-0.40.0/lib/libfilezilla/signature.hpp
+--- libfilezilla-0.40.0/lib/libfilezilla/signature.hpp.gcc13	2020-07-07 08:06:31.000000000 -0400
++++ libfilezilla-0.40.0/lib/libfilezilla/signature.hpp	2023-01-19 21:46:54.657990886 -0500
+@@ -11,6 +11,7 @@
+ 
+ #include <vector>
+ #include <string>
++#include <cstdint>
+ 
+ namespace fz {
+ 
diff --git a/libfilezilla.spec b/libfilezilla.spec
index b72c8ac..fbe58a9 100644
--- a/libfilezilla.spec
+++ b/libfilezilla.spec
@@ -1,11 +1,12 @@
 Name: libfilezilla
 Version: 0.40.0
-Release: 2%{?dist}
+Release: 3%{?dist}
 URL: https://lib.filezilla-project.org/
 Summary: C++ Library for FileZilla
 License: GPLv2+
 
 Source0: https://download.filezilla-project.org/%{name}/%{name}-%{version}.tar.bz2
+Patch0: gcc13.patch
 
 %if 0%{?rhel} == 8
 # libuv-devel not present on s390x on EL-8
@@ -33,7 +34,7 @@ functionality to build high-performing, platform-independent programs.
 This package contains files needed to compile code using libfilezilla.
 
 %prep
-%autosetup -p0
+%autosetup -p1
 
 %build
 %configure --disable-static
@@ -58,6 +59,9 @@ This package contains files needed to compile code using libfilezilla.
 %{_libdir}/pkgconfig/libfilezilla.pc
 
 %changelog
+* Fri Jan 20 2023 Scott Talbert <swt@techie.net> - 0.40.0-3
+- Fix FTBFS with GCC 13
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 0.40.0-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild