diff --git a/cnam/travaux/thesis/presentation/settings.tex b/cnam/travaux/thesis/presentation/settings.tex
index 545972e..e8de553 100644
--- a/cnam/travaux/thesis/presentation/settings.tex
+++ b/cnam/travaux/thesis/presentation/settings.tex
@@ -28,3 +28,5 @@ Creator={XeLaTeX / beamer},
 % set page numbering
 \addtobeamertemplate{navigation symbols}{}{
 \color{black}\normalsize\textbf\insertframenumber}
+
+\usepackage{multicol}