diff --git a/model/cluster_info.go b/model/cluster_info.go
index 8243746931..3072c9dc37 100644
--- a/model/cluster_info.go
+++ b/model/cluster_info.go
@@ -16,15 +16,15 @@ type ClusterInfo struct {
 	Hostname   string `json:"hostname"`
 }
 
-func (me *ClusterInfo) ToJson() string {
-	b, _ := json.Marshal(me)
+func (ci *ClusterInfo) ToJson() string {
+	b, _ := json.Marshal(ci)
 	return string(b)
 }
 
 func ClusterInfoFromJson(data io.Reader) *ClusterInfo {
-	var me *ClusterInfo
-	json.NewDecoder(data).Decode(&me)
-	return me
+	var ci *ClusterInfo
+	json.NewDecoder(data).Decode(&ci)
+	return ci
 }
 
 func ClusterInfosToJson(objmap []*ClusterInfo) string {