diff --git a/backend/internal/cert/deploy/ssh.go b/backend/internal/cert/deploy/ssh.go
index b2b062f..28e67dd 100644
--- a/backend/internal/cert/deploy/ssh.go
+++ b/backend/internal/cert/deploy/ssh.go
@@ -15,7 +15,7 @@ import (
 type SSHConfig struct {
 	User       string
 	Password   string // 可选
-	PrivateKey string // 可选
+	PrivateKey string `json:"key"` // 可选
 	Host       string
 	Port       any
 }