diff --git a/src/packages/fff/fff-mqtt-monitoring/files/usr/lib/micron.d/fff-json-mqtt-proxy b/src/packages/fff/fff-mqtt-monitoring/files/usr/lib/micron.d/fff-json-mqtt-proxy
new file mode 100644
index 00000000..1c07b3a5
--- /dev/null
+++ b/src/packages/fff/fff-mqtt-monitoring/files/usr/lib/micron.d/fff-json-mqtt-proxy
@@ -0,0 +1 @@
+*/5 * * * * sleep $(/usr/bin/random 70 85); /usr/sbin/json-mqtt-proxy
diff --git a/src/packages/fff/fff-mqtt-monitoring/files/usr/sbin/json-mqtt-proxy b/src/packages/fff/fff-mqtt-monitoring/files/usr/sbin/json-mqtt-proxy
index 309dceec..7b683df4 100644
--- a/src/packages/fff/fff-mqtt-monitoring/files/usr/sbin/json-mqtt-proxy
+++ b/src/packages/fff/fff-mqtt-monitoring/files/usr/sbin/json-mqtt-proxy
@@ -1,7 +1,7 @@
 #!/bin/sh
-MACADDR=$(cat /sys/class/net/br-client/address | /bin/sed 's/://g')
+MACADDR=$(/bin/sed 's/://g' < /sys/class/net/br-client/address)
 SCRIPT_DATA_FILE=$(uci get nodewatcher.@script[0].data_file).json
 
 if [ -n "$(uci -q get fff.mqtt.server)" ] ; then
-	mosquitto_pub -h "$(uci get fff.mqtt.server)" -p 1883 -t /monitoring/v2/$MACADDR -f $SCRIPT_DATA_FILE
+	mosquitto_pub -h "$(uci get fff.mqtt.server)" -p 1883 -t /monitoring/v2/"$MACADDR" -f "$SCRIPT_DATA_FILE"
 fi
diff --git a/src/packages/fff/fff-nodewatcher/files/usr/sbin/nodewatcher-json b/src/packages/fff/fff-nodewatcher/files/usr/sbin/nodewatcher-json
index 26061586..8a2b0713 100644
--- a/src/packages/fff/fff-nodewatcher/files/usr/sbin/nodewatcher-json
+++ b/src/packages/fff/fff-nodewatcher/files/usr/sbin/nodewatcher-json
@@ -42,6 +42,4 @@ LANG=C
 debug "Generate actual status data"
 crawl
 
-/usr/sbin/json-mqtt-proxy
-
-exit 0
\ No newline at end of file
+exit 0