diff --git a/README.md b/README.md
index 5735874..c02cdeb 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ Written in 1999.
 
 [GitHub](https://github.com/nineties-retro/sps)
 
-## Pre-Scheme for Guile
+### Pre-Scheme for Guile
 
 A port of Pre-Scheme from Scheme 48 to Guile.