diff --git a/lock b/lock
index 5d7bbf2..a060888 100755
--- a/lock
+++ b/lock
@@ -6,6 +6,7 @@ echo "Securing Communication to Space Systems..."
 echo "Open Communication Channel..."
 # Silent, Output to /dev/null, Timeout after 5s and retry 12 times, each doubling the waitingtime until ten minutes.
 nohup curl -s -o /dev/null -m 5 --connect-timeout 5 --retry 12 "https://hamburg.ccc.de/dooris/status.php?apikey=${password}&action=close" >/dev/null 2>&1 &
+nohup mosquitto_pub -h 'mqtt.z9' -t 'z9/door/events' -m 'locked' >/dev/null 2>&1 &
 echo "Locking Space..."
 echo "1" > /sys/class/gpio/gpio22/value
 sleep 0.3
diff --git a/unlock b/unlock
index 59177fc..00e4e76 100755
--- a/unlock
+++ b/unlock
@@ -5,6 +5,7 @@ echo "Initializing Space Systems..."
 echo "Securing Communication to Space Systems..."
 echo "Open Communication Channel..."
 nohup curl -s -o /dev/null -m 5 --connect-timeout 5 --retry 12 "https://hamburg.ccc.de/dooris/status.php?apikey=${password}&action=open" >/dev/null 2>&1 &
+nohup mosquitto_pub -h 'mqtt.z9' -t 'z9/door/events' -m 'unlocked' >/dev/null 2>&1 &
 echo "Unlocking Space..."
 echo "1" > /sys/class/gpio/gpio27/value
 sleep 0.3