diff --git a/docs/preso/03-PassTheSalt/pst.tex b/docs/preso/03-PassTheSalt/pst.tex
index 6253093..9df1016 100644
--- a/docs/preso/03-PassTheSalt/pst.tex
+++ b/docs/preso/03-PassTheSalt/pst.tex
@@ -64,7 +64,7 @@
 
 
 \begin{frame}
-\frametitle{D4 Overview}
+\frametitle{D4 Overview - Connecting Sensor Networks}
         \includegraphics[scale=0.46]{../../diagram/mixing-d4-1.pdf}
 \end{frame}