diff --git a/tool/cloudflare_gate/README.md b/tool/cloudflare_gate/README.md
index 42c07336..4135a475 100644
--- a/tool/cloudflare_gate/README.md
+++ b/tool/cloudflare_gate/README.md
@@ -8,5 +8,5 @@ About
 Content
 
 - index.php: gatekeeper
-- hosting.txt: Known hosting/VPS providers
+- hosting.txt: Known hosting/VPS providers (CIDR format)