diff --git a/docs/api-reference.md b/docs/api-reference.md
index 2096db4f1..fb47fcffc 100644
--- a/docs/api-reference.md
+++ b/docs/api-reference.md
@@ -1,4 +1,4 @@
-#API Reference
+# API Reference
 
 **Work in progress. [See the developer guide](/docs/1-install-and-setup.md) for a comprehensive walkthrough of AngularFire2.**