diff --git a/models/Migrate/migrate_models.go b/models/Migrate/migrate_models.go
index bb24eef..6bbd6de 100644
--- a/models/Migrate/migrate_models.go
+++ b/models/Migrate/migrate_models.go
@@ -9,7 +9,7 @@ import (
 type User struct {
 	UserId            string `gorm:"primary_key;type:uuid"`
 	Name              string
-	WalletAddress     string
+	WalletAddress     string `gorm:"unique"`
 	DeviceType        string // web3.0,web2.0,mobile
 	Discord           string
 	Twitter           string