diff --git a/store/userdb.go b/store/userdb.go
index 1b25c6d..b621e7e 100644
--- a/store/userdb.go
+++ b/store/userdb.go
@@ -6,7 +6,7 @@ import (
 
 type User struct {
 	IsDelete  bool      `gorm:"default:false" json:"IsDelete"`
-	ID        uint      `gorm:"primarykey" json:"id,omitempty"`
+	ID        uint      `gorm:"primaryKey;autoIncrement" json:"id,omitempty"`
 	Name      string    `gorm:"unique;not null" json:"name,omitempty"`
 	Token     string    `gorm:"unique;not null" json:"token,omitempty"`
 	CreatedAt time.Time `json:"createdAt,omitempty"`