diff --git a/data/microsoft b/data/microsoft
index 3efc5fc9..96914846 100644
--- a/data/microsoft
+++ b/data/microsoft
@@ -258,7 +258,6 @@ yammer.com
 
 # Domains and services below are available in China mainland
 # Use in config file like this: "geosite:microsoft@cn"
-cdn.office.net @cn
 dl.delivery.mp.microsoft.com @cn
 download.windowsupdate.com @cn
 full:bg.v4.a.dl.ws.microsoft.com @cn