diff --git a/principal.tex b/principal.tex
index 08ee491..7912198 100644
--- a/principal.tex
+++ b/principal.tex
@@ -147,6 +147,9 @@
     \end{figure}
 \end{frame}
 
+\section[Bipartite collection models]{Bipartite network collection models}
+\label{sec:extension-of-colsbm-to-bipartite-networks}
+
 \begin{frame}
     \frametitle{First approach: sep-BiSBM}
     \only<1-2>{
@@ -183,9 +186,6 @@
     }
 \end{frame}
 
-\section[Bipartite collection models]{Bipartite network collection models}
-\label{sec:extension-of-colsbm-to-bipartite-networks}
-
 \begin{frame}
     \frametitle{Several joint models}
     \onslide<1->{    \begin{block}{\emph{iid}-colBiSBM}