diff --git a/kahansum_test_fix_for_aarc64_s390x.patch b/kahansum_test_fix_for_aarc64_s390x.patch
new file mode 100644
index 0000000..e0110c0
--- /dev/null
+++ b/kahansum_test_fix_for_aarc64_s390x.patch
@@ -0,0 +1,16 @@
+diff -U 3 -dHrN a/sc/inc/arraysumfunctor.hxx b/sc/inc/arraysumfunctor.hxx
+--- a/sc/inc/arraysumfunctor.hxx	2023-09-22 21:07:01.000000000 +0200
++++ b/sc/inc/arraysumfunctor.hxx	2023-10-01 09:13:03.523493665 +0200
+@@ -85,8 +85,12 @@
+ inline KahanSum sumArray(const double* pArray, size_t nSize)
+ {
+     size_t i = 0;
++#if 0
+     const double* pCurrent = pArray;
+     KahanSum fSum = executeFast(i, nSize, pCurrent);
++#else
++    KahanSum fSum = 0.0;
++#endif
+ 
+     // sum rest of the array
+     for (; i < nSize; ++i)
diff --git a/libreoffice.spec b/libreoffice.spec
index d6c45dd..6e040b1 100644
--- a/libreoffice.spec
+++ b/libreoffice.spec
@@ -58,7 +58,7 @@ Summary:        Free Software Productivity Suite
 Name:           libreoffice
 Epoch:          1
 Version:        %{libo_version}.1
-Release:        1%{?libo_prerelease}%{?dist}
+Release:        2%{?libo_prerelease}%{?dist}
 # default new files are: MPLv2
 # older files are typically: MPLv2 incorporating work under ASLv2
 # nlpsolver is: LGPLv3
@@ -279,6 +279,8 @@ Patch6: limit-tests-giving-dubious-results-to-x86_64.patch
 # https://lists.freedesktop.org/archives/libreoffice/2023-August/090870.html
 Patch11: lo-7.6-ppc64le-tests.patch
 Patch500: 0001-disable-libe-book-support.patch
+# https://lists.freedesktop.org/archives/libreoffice/2023-September/090948.html
+Patch501: kahansum_test_fix_for_aarc64_s390x.patch
 
 %global instdir %{_libdir}
 %global baseinstdir %{instdir}/libreoffice
@@ -1016,6 +1018,10 @@ mv -f redhat.soc extras/source/palettes/standard.soc
 %patch500 -p1
 %endif
 
+%ifarch aarch64 s390x
+%patch501 -p1
+%endif
+
 # Temporarily disable failing tests
 %ifarch ppc64le
 sed -i -e /CppunitTest_sc_array_functions_test/d sc/Module_sc.mk
@@ -2258,6 +2264,9 @@ gtk-update-icon-cache -q %{_datadir}/icons/hicolor &>/dev/null || :
 %{_includedir}/LibreOfficeKit
 
 %changelog
+* Sun Oct 01 2023 Mattia Verga <mattia.verga@proton.me> - 1:7.6.2.1-2
+- Add patch 501 for failing tests on aarc64 and s390x
+
 * Sat Sep 30 2023 Mattia Verga <mattia.verga@proton.me> - 1:7.6.2.1-1
 - 7.6.2.1