diff --git a/accelerated-domains.china.conf b/accelerated-domains.china.conf
index c7b3523686..ef7aeb46ef 100644
--- a/accelerated-domains.china.conf
+++ b/accelerated-domains.china.conf
@@ -29783,7 +29783,6 @@ server=/linuser.org/114.114.114.114
 server=/linux-ren.org/114.114.114.114
 server=/linux00.com/114.114.114.114
 server=/linux265.com/114.114.114.114
-server=/linux521.com/114.114.114.114
 server=/linux6.com/114.114.114.114
 server=/linuxcool.com/114.114.114.114
 server=/linuxdaxue.com/114.114.114.114