diff --git a/slides/onelab.tex b/slides/onelab.tex
index 9a5852063fb2dc1d63f940a7a8c6627efdadf7d3..8d65f29fa893324400199a5f0e6fcae01d3150c8 100644
--- a/slides/onelab.tex
+++ b/slides/onelab.tex
@@ -18,6 +18,11 @@
 \institute{Universit\'e de Li\`ege}
 \date{\today}
 
+% \AtBeginSection[]{ % add toc at the beginning of each section
+% \begin{frame}[plain]
+% \tableofcontents[currentsection]
+% \end{frame}}
+
 \begin{document}
 
 \begin{frame}
@@ -1820,7 +1825,7 @@ PostOperation {
   \begin{center}
     \vspace{5em}
     {\Large Thanks for your attention}\\[4em]
-    {\small \url{https://people.montefiore.ulg.ac.be/geuzaine}}\\[2em]
+    {\small \url{http://people.montefiore.ulg.ac.be/geuzaine}}\\[2em]
     {\small \Letter \hspace{.5em} cgeuzaine@uliege.be}
   \end{center}
 \end{frame}