diff --git a/waf.lua b/waf.lua
index a6e5fdc..bd22f19 100644
--- a/waf.lua
+++ b/waf.lua
@@ -8,6 +8,7 @@ elseif ngx.var.http_Acunetix_Aspect then
 elseif ngx.var.http_X_Scan_Memo then
     ngx.exit(444)
 elseif whiteurl() then
+elseif white_servername() then
 elseif ua() then
 elseif url() then
 elseif args() then