diff --git a/xCAT-UI-deps/Build-notes b/xCAT-UI-deps/Build-notes
index f4e0252..7721271 100644
--- a/xCAT-UI-deps/Build-notes
+++ b/xCAT-UI-deps/Build-notes
@@ -4,3 +4,8 @@ Use the xCAT-UI-deps.spec supplied in this directory
 cp xCAT-UI-deps.tar.gz to /opt/freeware/src/packages/SOURCES 
 rpm -ba xCAT-UI-deps.spec 
 This creates /opt/freeware/src/packages/RPMS/noarch/xCAT-UI-deps-*.noarch.rpm
+
+For zVM s390:
+Copy the xCAT-UI-deps.spec and xCAT-UI-deps.tar.gz to /build/SOURCES
+rpmbuild -ba xCAT-UI-deps.spec
+This creates /root/build/RPMS/noarch/xCAT-UI-deps-*.noarch.rpm