diff --git a/features/pm/performance.go b/features/pm/performance.go
index e8db2f5b..6f17fcd4 100644
--- a/features/pm/performance.go
+++ b/features/pm/performance.go
@@ -79,9 +79,9 @@ type KpiData struct {
 	CreatedAt int64 `json:"createdAt" xorm:"'created_at'"`
 }
 type KPIVal struct {
-	KPIID string `json:"kpiID"`
-	Value int64  `json:"value"`
-	Err   string `json:"err"`
+	KPIID string `json:"kpi_id" xorm:"kpi_id"`
+	Value int64  `json:"value" xorm:"value"`
+	Err   string `json:"err" xorm:"err"`
 }
 
 var (