diff --git a/osscluster.go b/osscluster.go
index 1e9ee7de4..7cd4ffec4 100644
--- a/osscluster.go
+++ b/osscluster.go
@@ -720,7 +720,7 @@ 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()
 }