diff --git a/http/router_collect_rule.go b/http/router_collect_rule.go
index 827c7a65..508cd771 100644
--- a/http/router_collect_rule.go
+++ b/http/router_collect_rule.go
@@ -132,7 +132,7 @@ func collectRuleGetsByIdent(c *gin.Context) {
 }
 
 type Summary struct {
-	LatestUpdatedAt int64 `json:"latestUpdatedAt"`
+	LatestUpdatedAt int64 `json:"latest_updated_at"`
 	Total           int   `json:"total"`
 }