diff --git a/configure b/configure
index 205eee8..22d06b5 100755
--- a/configure
+++ b/configure
@@ -356,6 +356,9 @@
                ARCH_LDFLAGS="${SP_LDFLAGS}"
            fi
            ;;
+    s390)
+           ARCH_CFLAGS="-march=z900"
+           ;;
 esac
 
 if [ "$solaris" = "yes" -a  "$cpu" = "x86_64" ] ; then