diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87498c9..6df79d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+In Development
+--------------
+
+* Reduce munin-node.conf log_level to warning(1) as default ubuntu package uses log_level debug(4) which over time creates big log files.
+
+
 v0.26 (January 18, 2018)
 ------------------------
 
diff --git a/setup/munin.sh b/setup/munin.sh
index b1c5c8b..c812dab 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