diff --git a/mqtt/mqtt b/mqtt/mqtt
index b71e5a2..76d61c2 100755
--- a/mqtt/mqtt
+++ b/mqtt/mqtt
@@ -49,6 +49,7 @@ case ${SENSOR_UNIT} in
     ;;
 esac
 SENSOR_ID="${DEVICE_ID}_${SENSOR_NAME}_${SENSOR_TYPE}"
+SENSOR_ID="${SENSOR_ID//ü/ue}"
 SENSOR_EXPIRE_AFTER_S="600"
 
 # MQTT attributes