diff --git a/waf/baidu.py b/waf/baidu.py
index 7a15feadb..27f1f21ca 100644
--- a/waf/baidu.py
+++ b/waf/baidu.py
@@ -17,6 +17,7 @@ def detect(get_page):
     for vector in WAF_ATTACK_VECTORS:
         page, headers, code = get_page(get=vector)
         retval = re.search(r"fhl", headers.get("X-Server", ""), re.I) is not None
+        retval |= re.search(r"yunjiasu-nginx", headers.get("server"), re.I) is not None
         if retval:
             break