diff --git a/data/category-doh b/data/category-doh
index 2284b1fa..83930e27 100644
--- a/data/category-doh
+++ b/data/category-doh
@@ -1,3 +1,5 @@
+# This is not related with `category-httpdns-cn`
+
 # **Public anycast resolvers**
 
 # AdGuard DNS