diff --git a/README.md b/README.md
index 1bb63be..bd0953e 100644
--- a/README.md
+++ b/README.md
@@ -505,7 +505,7 @@ server {
     auth_request_set $auth_cookie $upstream_http_set_cookie;
     add_header Set-Cookie $auth_cookie;
 
-    # When using the --set-authorization flag, some provider's cookies can exceed the 4kb
+    # When using the --set-authorization-header flag, some provider's cookies can exceed the 4kb
     # limit and so the OAuth2 Proxy splits these into multiple parts.
     # Nginx normally only copies the first `Set-Cookie` header from the auth_request to the response,
     # so if your cookies are larger than 4kb, you will need to extract additional cookies manually.