diff --git a/slides/Snakemake_HPC_Creators.tex b/slides/Snakemake_HPC_Creators.tex
index 62e6063..009e22b 100644
--- a/slides/Snakemake_HPC_Creators.tex
+++ b/slides/Snakemake_HPC_Creators.tex
@@ -53,6 +53,11 @@
 \usefonttheme{default}
 %\setbeamercovered{transparent}
 \setbeamertemplate{footline}[frame number]
+
+% remove the navigation symbols
+\setbeamertemplate{navigation symbols}{}
+
+% side margins
 \setbeamersize{text margin left=0.5cm, text margin right=0.5cm}
 
 \setbeamercolor{structure}{fg=UniRot}% to modify  immediately all palettes
diff --git a/slides/Snakemake_HPC_Users.tex b/slides/Snakemake_HPC_Users.tex
index fbd5e96..de20b3d 100644
--- a/slides/Snakemake_HPC_Users.tex
+++ b/slides/Snakemake_HPC_Users.tex
@@ -53,6 +53,11 @@
 \usefonttheme{default}
 %\setbeamercovered{transparent}
 \setbeamertemplate{footline}[frame number]
+
+% remove navigation buttons
+\setbeamertemplate{navigation symbols}{}
+
+% set side margins
 \setbeamersize{text margin left=0.5cm, text margin right=0.5cm}
 
 \setbeamercolor{structure}{fg=UniRot}% to modify  immediately all palettes