diff --git a/not_cloudflare/cidr_data/README.md b/not_cloudflare/cidr_data/README.md
index 6c12f944f..20f744eb6 100644
--- a/not_cloudflare/cidr_data/README.md
+++ b/not_cloudflare/cidr_data/README.md
@@ -1,4 +1,4 @@
-#### CDN CIDR(IPv4) list  (cdnName.txt)
+#### CDN CIDR(IPv4) list  (cidr_cdnName.txt)
 
 - Cloudflare CIDR is [cloudflare_inc/cloudflare_CIDR_v4.txt](../../cloudflare_inc/cloudflare_CIDR_v4.txt)