diff --git a/main.tex b/main.tex
index 12fec77..90bcd50 100644
--- a/main.tex
+++ b/main.tex
@@ -48,6 +48,7 @@ Martijn Remmen
 \usepackage{pgfgantt}
 \usepackage{pdflscape}
 
+\usepackage{multirow}
 \usepackage{tikz}
 
 \usepackage[pdftex,