diff --git a/xCAT-test/unit/genesis_openembedded_activation.t b/xCAT-test/unit/genesis_openembedded_activation.t
index 9fd0e6e1a..774f73049 100644
--- a/xCAT-test/unit/genesis_openembedded_activation.t
+++ b/xCAT-test/unit/genesis_openembedded_activation.t
@@ -114,7 +114,7 @@ like(
 );
 like(
     $mknb_pod,
-    qr/x86.*x86_64.*ppc64.*ppc64le.*armv7hf.*aarch64.*riscv64/s,
+    qr/x86.*x86_64.*ppc64.*ppc64le.*armv7hf.*aarch64.*riscv64.*s390x/s,
     'the mknb man page lists every exact OpenEmbedded architecture',
 );
 unlike(