diff --git a/munin/munin b/munin/munin
index 0c0bb37b..99cf2efe 100755
--- a/munin/munin
+++ b/munin/munin
@@ -4,7 +4,7 @@ if [ "$1" = "config" ]; then
 
 	echo 'graph_category system'
 	echo 'graph_title Munin'
-	echo 'graph_args --base 1000 --lower-limit 0'
+	echo 'graph_args --base 1000 --lower-limit 0 --rigid'
 	echo 'graph_vlabel Temps de traitement (s)'
 	echo 'update.label update'
 	echo 'update.draw AREA'
@@ -15,6 +15,9 @@ if [ "$1" = "config" ]; then
 	echo 'html.label html'
 	echo 'html.draw STACK'
 	echo 'total.label Total'
+	echo 'max.label Maximum'
+	echo 'total.warning 0:300'
+	echo 'update.critical 0:240'
 	exit 0
 fi
 
@@ -48,4 +51,7 @@ time_html=$(echo $end_html"-"$begin_html | bc -l)
 echo $time_html
 
 echo -n "total.value "
-echo    $time_update"+"$time_limits"+"$time_graph"+"$time_html | bc -l
\ No newline at end of file
+echo    $time_update"+"$time_limits"+"$time_graph"+"$time_html | bc -l
+
+# Le temps de rafraīchissement de munin est de 5 minutes
+echo "max.value 300"