diff --git a/docs/cli/authentication.md b/docs/cli/authentication.md
index e1801a8e..0a56bc58 100644
--- a/docs/cli/authentication.md
+++ b/docs/cli/authentication.md
@@ -1,4 +1,4 @@
-## Authentication Setup
+# Authentication Setup
 
 The Gemini CLI requires you to authenticate with Google's AI services. On initial startup you'll need to configure **one** of the following authentication methods: