diff --git a/pkg/mcclient/options/servers.go b/pkg/mcclient/options/servers.go
index 6fd0d8b643..ec4d589d6b 100644
--- a/pkg/mcclient/options/servers.go
+++ b/pkg/mcclient/options/servers.go
@@ -22,6 +22,7 @@ type ServerListOptions struct {
 	Region        string `help:"Show servers in cloudregion"`
 	WithEip       *bool  `help:"Show Servers with EIP"`
 	WithoutEip    *bool  `help:"Show Servers without EIP"`
+	OsType        string `help:"OS Type" choices:"linux|windows|vmware"`
 
 	ResourceType string `help:"Resource type" choices:"shared|prepaid|dedicated"`