diff --git a/components/cli/opts/ip.go b/components/cli/opts/ip.go
index f0c29750bc..f8a493e68a 100644
--- a/components/cli/opts/ip.go
+++ b/components/cli/opts/ip.go
@@ -20,7 +20,7 @@ func NewIpOpt(ref *net.IP, defaultVal string) *IpOpt {
 func (o *IpOpt) Set(val string) error {
 	ip := net.ParseIP(val)
 	if ip == nil {
-		return fmt.Errorf("incorrect IP format")
+		return fmt.Errorf("%s is not an ip address", val)
 	}
 	(*o.IP) = net.ParseIP(val)
 	return nil