diff --git a/jobs/virttest_at.yaml b/jobs/virttest_at.yaml
index f24ead61c1605383f007a2857c9c342f20397142..98937cd754664e9e0fbd9963851062ea31a7fab4 100644
--- a/jobs/virttest_at.yaml
+++ b/jobs/virttest_at.yaml
@@ -334,6 +334,7 @@ virttest-48:
   vt_reference:
   - virsh.attach_detach_interface
   vt_type: libvirt
+  vt_guest_os: Guest.Linux.openEuler.20.09
   vt_only_filter: normal_test.vm_running.exist_bridge
 
 virttest-49: