diff --git a/setup/munin.sh b/setup/munin.sh
index b1c5c8ba..c812dab2 100755
--- a/setup/munin.sh
+++ b/setup/munin.sh
@@ -38,8 +38,10 @@ chown munin. /var/log/munin/munin-cgi-html.log
 chown munin. /var/log/munin/munin-cgi-graph.log
 
 # ensure munin-node knows the name of this machine
+# and reduce logging level to warning
 tools/editconf.py /etc/munin/munin-node.conf -s \
-	host_name=$PRIMARY_HOSTNAME
+	host_name=$PRIMARY_HOSTNAME \
+	log_level=1
 
 # Update the activated plugins through munin's autoconfiguration.
 munin-node-configure --shell --remove-also 2>/dev/null | sh