diff --git a/perftest.spec b/perftest.spec
index 35654f6..5f3f815 100644
--- a/perftest.spec
+++ b/perftest.spec
@@ -1,7 +1,7 @@
 Name:           perftest
 Summary:        IB Performance Tests
 Version:        4.4
-Release:        5%{?dist}
+Release:        6%{?dist}
 License:        GPLv2 or BSD
 Source:         https://github.com/linux-rdma/perftest/releases/download/4.4-0.29/perftest-4.4-0.29.g817ec38.tar.gz
 Url:            https://github.com/linux-rdma/perftest
@@ -11,7 +11,7 @@ BuildRequires:  libibverbs-devel >= 1.2.0
 BuildRequires:  librdmacm-devel >= 1.0.21
 BuildRequires:  libibumad-devel >= 1.3.10.2
 Obsoletes:      openib-perftest < 1.3
-ExcludeArch:    s390 s390x %{arm}
+ExcludeArch:    s390 %{arm}
 
 %description
 Perftest is a collection of simple test programs designed to utilize 
@@ -38,6 +38,9 @@ done
 %_bindir/*
 
 %changelog
+* Fri Sep 18 2020 Honggang Li <honli@redhat.com> - 4.4-6
+- Build perftest for s390x
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.4-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild