diff --git a/osscluster.go b/osscluster.go
index 72e922a8..74a0f98c 100644
--- a/osscluster.go
+++ b/osscluster.go
@@ -714,7 +714,7 @@ func replaceLoopbackHost(nodeAddr, originHost string) string {
 func isLoopback(host string) bool {
 	ip := net.ParseIP(host)
 	if ip == nil {
-		return true
+		return false
 	}
 	return ip.IsLoopback()
 }