diff --git a/metadata/org.b3log.siyuan.yml b/metadata/org.b3log.siyuan.yml
index d1dba8fd08..e2c3bf3c32 100644
--- a/metadata/org.b3log.siyuan.yml
+++ b/metadata/org.b3log.siyuan.yml
@@ -1,3 +1,6 @@
+AntiFeatures:
+  NonFreeNet:
+    en-US: Connects to China cloud services at siyuan-sync.b3logfile.com
 Categories:
   - Writing
 License: AGPL-3.0-only