diff --git a/extras/hs-test/http_test.go b/extras/hs-test/http_test.go
index 3741619..94cb0ca 100644
--- a/extras/hs-test/http_test.go
+++ b/extras/hs-test/http_test.go
@@ -272,7 +272,9 @@
 	return nil
 }
 
+// unstable with multiple workers
 func NginxPerfCpsTest(s *NoTopoSuite) {
+	s.SkipIfMultiWorker()
 	s.assertNil(runNginxPerf(s, "cps", "ab"))
 }