diff --git a/argon2.spec b/argon2.spec
index 5cf67525b1a6555bec6a80fe3e9d1557f7657c41..177027adf77ac9fb4a6ef71816bf02251431f097 100644
--- a/argon2.spec
+++ b/argon2.spec
@@ -1,6 +1,6 @@
 Name:          argon2
 Version:       20190702
-Release:       5
+Release:       6
 Summary:       A password-hashing tool
 License:       CC0-1.0 OR Apache-2.0
 URL:           https://github.com/P-H-C/phc-winner-argon2
@@ -8,6 +8,7 @@ Source0:       https://github.com/P-H-C/phc-winner-argon2/archive/62358ba2123abd
 
 Patch1:  backport-fix-3-spelling-mistakes.patch
 Patch2:  backport-Don-t-fail-on-existing-symlink.patch
+Patch3:  backport-Fix-cross-compilation-on-some-systems.patch
 
 BuildRequires: gcc
 Requires:      libargon2%{?_isa} = %{version}-%{release}
@@ -105,6 +106,9 @@ make test
 %{_mandir}/man1/*
 
 %changelog
+* Mon Sep 1 2025 yixiangzhike <yixiangzhike007@163.com> - 20190702-6
+- backport upstream patch to fix cross-compilation on some systems
+
 * Mon May 05 2025 Funda Wang <fundawang@yeah.net> - 20190702-5
 - fix build with package notes
 - cleanup spec
diff --git a/backport-Fix-cross-compilation-on-some-systems.patch b/backport-Fix-cross-compilation-on-some-systems.patch
new file mode 100644
index 0000000000000000000000000000000000000000..bcaba685ac014d4329ab6989e444517589494219
--- /dev/null
+++ b/backport-Fix-cross-compilation-on-some-systems.patch
@@ -0,0 +1,37 @@
+From cd1c1d8d204e4ec4557e358013567c097cb70562 Mon Sep 17 00:00:00 2001
+From: Vika <kisik21@fireburn.ru>
+Date: Mon, 26 Aug 2019 14:05:22 +0300
+Subject: [PATCH] Fix cross-compilation on some systems
+
+Some Linux distributions (e.g. NixOS, where this issue was spotted) don't provide an unprefixed ar when cross-compiling. This PR aims to fix this.
+
+See[NixOS/nixpkgs#67490](https://github.com/NixOS/nixpkgs/pull/67490) for information on where did it start.
+---
+ Makefile | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 837e7f7..38f16fc 100644
+--- a/Makefile
++++ b/Makefile
+@@ -123,6 +123,8 @@ ifdef LINKED_LIB_EXT
+ LINKED_LIB_SH := lib$(LIB_NAME).$(LINKED_LIB_EXT)
+ endif
+ 
++# Some systems don't provide an unprefixed ar when cross-compiling.
++AR=ar
+ 
+ LIBRARIES = $(LIB_SH) $(LIB_ST)
+ HEADERS = include/argon2.h
+@@ -182,7 +184,7 @@ $(LIB_SH): 	$(SRC)
+ 		$(CC) $(CFLAGS) $(LIB_CFLAGS) $(LDFLAGS) $(SO_LDFLAGS) $^ -o $@
+ 
+ $(LIB_ST): 	$(OBJ)
+-		ar rcs $@ $^
++		$(AR) rcs $@ $^
+ 
+ .PHONY: clean
+ clean:
+-- 
+2.43.0
+