diff --git a/README.md b/README.md
index 17a26ff..0c12eff 100644
--- a/README.md
+++ b/README.md
@@ -295,7 +295,7 @@ Rack::Attack.throttled_response = lambda do |env|
 end
 ```
 
-### X-RateLimit headers for well-behaved clients
+### RateLimit headers for well-behaved clients
 
 While Rack::Attack's primary focus is minimizing harm from abusive clients, it
 can also be used to return rate limit data that's helpful for well-behaved clients.