diff --git a/intro/intro.tex b/intro/intro.tex
index 52a142c..5dab7e1 100644
--- a/intro/intro.tex
+++ b/intro/intro.tex
@@ -1,4 +1,4 @@
-\documentclass{ttnn}
+\documentclass[11pt]{ttnn}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{lmodern}