diff --git a/svc/pkg/infra/entity/staff/staff.go b/svc/pkg/infra/entity/staff/staff.go
index b6d6ff5..24f7100 100644
--- a/svc/pkg/infra/entity/staff/staff.go
+++ b/svc/pkg/infra/entity/staff/staff.go
@@ -3,6 +3,6 @@ package entity
 const StaffTableName = "Staffs"
 
 type Staff struct {
-	UserID  string `json:"user_id"`
+	UserID  string `json:"-"`
 	IsAdmin bool   `json:"is_admin"`
 }