diff --git a/backend/app/dto/setting.go b/backend/app/dto/setting.go
index 5da1a3dc0..9895b0eec 100644
--- a/backend/app/dto/setting.go
+++ b/backend/app/dto/setting.go
@@ -60,7 +60,7 @@ type SettingUpdate struct {
 }
 
 type SSLUpdate struct {
-	SSLType string `json:"sslType" validate:"required,oneof=self select import-paste import-local"`
+	SSLType string `json:"sslType" validate:"required,oneof=self select import import-paste import-local"`
 	Domain  string `json:"domain"`
 	SSL     string `json:"ssl" validate:"required,oneof=enable disable"`
 	Cert    string `json:"cert"`