diff --git a/userparameter_zabbixdocker.conf b/userparameter_zabbixdocker.conf
index 3127c6f..4549d50 100644
--- a/userparameter_zabbixdocker.conf
+++ b/userparameter_zabbixdocker.conf
@@ -14,16 +14,16 @@ UserParameter=docker.running.ubuntu, ps -ef | grep 'dockerd' | grep -v grep | wc
 
 UserParameter=docker.containers.running, docker ps -q | wc -l
 
-UserParameter=docker.discovery, /usr/local/bin/zabbix-docker-discover.py
+UserParameter=docker.discovery, /usr/local/bin/zabbix-docker-discover.py 2> /dev/null
 
-UserParameter=docker.info[*], /usr/local/bin/zabbix-docker-info.py "$1" | grep -v "WARNING"
+UserParameter=docker.info[*], /usr/local/bin/zabbix-docker-info.py "$1" 2> /dev/null | grep -v "WARNING"
 
-UserParameter=docker.info.boolean[*], /usr/local/bin/zabbix-docker-info.py "$1" | grep -v "WARNING" | grep -i true | wc -l
+UserParameter=docker.info.boolean[*], /usr/local/bin/zabbix-docker-info.py "$1" 2> /dev/null | grep -v "WARNING" | grep -i true | wc -l
 
-UserParameter=docker.info.convert[*], docker info | grep -v "WARNING" | grep "$1" | cut -f2 -d: | cut -c2- | /usr/local/bin/zabbix-docker-convert.py
+UserParameter=docker.info.convert[*], docker info 2> /dev/null | grep -v "WARNING" | grep "$1" | cut -f2 -d: | cut -c2- | /usr/local/bin/zabbix-docker-convert.py
 
-UserParameter=docker.container.inspect[*], /usr/local/bin/zabbix-docker-inspect.py $1 $2
+UserParameter=docker.container.inspect[*], /usr/local/bin/zabbix-docker-inspect.py $1 $2 2> /dev/null
 
-UserParameter=docker.container.inspect.boolean[*], /usr/local/bin/zabbix-docker-inspect.py $1 $2 | grep -i true | wc -l
+UserParameter=docker.container.inspect.boolean[*], /usr/local/bin/zabbix-docker-inspect.py $1 $2 2> /dev/null | grep -i true | wc -l
 
-UserParameter=docker.container.stats[*], /usr/local/bin/zabbix-docker-stats.py $1 $2
+UserParameter=docker.container.stats[*], /usr/local/bin/zabbix-docker-stats.py $1 $2 2> /dev/null