diff --git a/ssl_manager/route_watcher.py b/ssl_manager/route_watcher.py
index ed131c4..7b9bec4 100755
--- a/ssl_manager/route_watcher.py
+++ b/ssl_manager/route_watcher.py
@@ -188,10 +188,11 @@ class RouteWatcher:
                 # 多个域名，合并到一个证书申请（使用 SAN）
                 primary_domain = domains_to_request[0]
                 additional_domains = domains_to_request[1:]
+                total_domains = len(additional_domains) + 1
                 logger.info(f"发现同一路由中的多个域名，合并申请证书: {primary_domain} + {additional_domains}")
                 try:
                     if self.ssl_manager.request_certificate(primary_domain, additional_domains):
-                        logger.info(f"证书申请成功: {primary_domain} (包含 {len(additional_domains)} + 1} 个域名)")
+                        logger.info(f"证书申请成功: {primary_domain} (包含 {total_domains} 个域名)")
                     else:
                         logger.error(f"证书申请失败: {primary_domain} + {additional_domains}")
                 except Exception as e: