diff --git a/v8ctf/RULES.md b/v8ctf/RULES.md
index 0387a00d..6e54245e 100644
--- a/v8ctf/RULES.md
+++ b/v8ctf/RULES.md
@@ -31,7 +31,7 @@ The following rules apply to the eligibility of exploits:
 
 ## Setup
 
-You can find a description of our v8CTF infrastructure in the [README](https://github.com/google/security-research/blob/master/v8ctf/readme.md).
+You can find a description of our v8CTF infrastructure in the [README](https://github.com/google/security-research/blob/master/v8ctf/README.md).
 
 ## Communication