diff --git a/intern/docker_openhab/templates/conf/items/mqtt.items b/intern/docker_openhab/templates/conf/items/mqtt.items
index df8a45c505373fb579509b80c857b50549378ec9..35830e3cf8f167b7533226b06193b20be2504631 100644
--- a/intern/docker_openhab/templates/conf/items/mqtt.items
+++ b/intern/docker_openhab/templates/conf/items/mqtt.items
@@ -39,7 +39,7 @@ Number MQTT_{{ device.id }}_{{ sensor }} "Sensor {{ device.name }} kW [%.1f kW]"
 
       {% elif sensor == "Kuehlschrank-Door" or sensor == "warpzone_status" %}  
 
-Switch MQTT_{{ device.id }}_{{ sensor }} "Sensor {{ device.name }}"   ({{ device.groups }}) { 
+Switch MQTT_{{ device.id }}_{{ sensor | replace("-","") | lower }} "Sensor {{ device.name }}"   ({{ device.groups }}) { 
     channel="mqtt:topic:mosquitto:{{ device.id }}:{{ sensor | replace("-","") | lower }}" 
 }