diff --git a/README.md b/README.md
index 9380179..858f41e 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ It's a simple path-based HTTP API.
 ## Token File
 The token file is a brain-dead access control mechanism. It is a file that
 contains a single "API Key" per line. You are free to mint and distribute
-API Keys that users can include in the `X-MASKER-TOKEN` header with their
+API Keys that users can include in the `x-api-token` header with their
 requests.
 
 ## Hosts File