diff --git a/doc/TIERS.md b/doc/TIERS.md
index c546bea..c94cd6a 100644
--- a/doc/TIERS.md
+++ b/doc/TIERS.md
@@ -1,3 +1,5 @@
+# Tiers
+
 Ports of Milsko are grouped into three "tiers" in terms of their support.
 
 - **Tier 1**: Before every new release of Milsko, these platforms will be tested to make sure they have full support, and the CI will test them.
@@ -15,4 +17,4 @@ Tier 3 backends are:
 
 - Mac OS X 10.4+ with Cocoa
 - Mac OS 7-9, PowerPC (68k support not planned).
-- Haiku
\ No newline at end of file
+- Haiku