diff --git a/macros b/macros
index bd5be55..01394c4 100644
--- a/macros
+++ b/macros
@@ -134,7 +134,7 @@ print(result)
 # Architecture-specific support.  Internal.  Do not use directly.
 
 # Also used for s390.
-%__cflags_arch_s390x %[0%{?rhel} >= 8 ? "-march=z13 -mtune=z13" : "-march=zEC12 -mtune=z13"]
+%__cflags_arch_s390x %[0%{?rhel} >= 8 ? "-march=z13 -mtune=z14" : "-march=zEC12 -mtune=z13"]
 
 #==============================================================================
 # ---- configure and makeinstall.
diff --git a/redhat-rpm-config.spec b/redhat-rpm-config.spec
index 7d1453c..bbde9b5 100644
--- a/redhat-rpm-config.spec
+++ b/redhat-rpm-config.spec
@@ -6,7 +6,7 @@
 
 Summary: Red Hat specific rpm configuration files
 Name: redhat-rpm-config
-Version: 175
+Version: 176
 Release: 1%{?dist}
 # No version specified.
 License: GPL+
@@ -213,6 +213,9 @@ install -p -m 644 -t %{buildroot}%{_rpmluadir}/fedora/srpm forge.lua
 %{_rpmconfigdir}/macros.d/macros.kmp
 
 %changelog
+* Tue Oct 20 2020 Florian Weimer <fweimer@redhat.com> - 176-1
+- s390x: Tune for z14 (as in Red Hat Enterprise Linux 8)
+
 * Mon Oct  5 2020 Florian Weimer <fweimer@redhat.com> - 175-1
 - s390x: Switch Fedora ELN to z13 baseline