diff --git a/test/smoke_test/cas_ex.en.pws b/test/smoke_test/cas_ex.en.pws
index 9e33ca2..b389e7a 100644
--- a/test/smoke_test/cas_ex.en.pws
+++ b/test/smoke_test/cas_ex.en.pws
@@ -33,6 +33,7 @@ conf
 config
 csv
 dev
+failover
 io
 kibibytes
 lru