diff --git a/ha_addon_dev/config.yaml b/ha_addon_dev/config.yaml
index b492fd1..9b1b0a7 100755
--- a/ha_addon_dev/config.yaml
+++ b/ha_addon_dev/config.yaml
@@ -1,6 +1,6 @@
 name: TSUN-Proxy (Dev)
 description: MQTT Proxy for TSUN Photovoltaic Inverters
-version:  0.14.0-dev-2505311821 
+version:  0.14.0-dev-2505311826 
 image: docker.io/sallius/tsun-gen3-addon
 url: https://github.com/s-allius/tsun-gen3-proxy
 slug: tsun-proxy-dev
diff --git a/ha_addon_dev/rootfs/run.sh b/ha_addon_dev/rootfs/run.sh
index 9d54555..2c306dd 100755
--- a/ha_addon_dev/rootfs/run.sh
+++ b/ha_addon_dev/rootfs/run.sh
@@ -5,10 +5,12 @@ bashio::cache.flush_all
 echo "check for Home Assistant supervisor API"
 if bashio::supervisor.ping; then
     echo "check for Home Assistant MQTT"
-    MQTT_HOST=$(bashio::services mqtt "host")
-    MQTT_PORT=$(bashio::services mqtt "port")
-    MQTT_USER=$(bashio::services mqtt "username")
-    MQTT_PASSWORD=$(bashio::services mqtt "password")
+    if bashio::services mqtt; then
+        MQTT_HOST=$(bashio::services mqtt "host")
+        MQTT_PORT=$(bashio::services mqtt "port")
+        MQTT_USER=$(bashio::services mqtt "username")
+        MQTT_PASSWORD=$(bashio::services mqtt "password")
+    fi
 else
     echo "error Home Assistant supervisor API not available!"
 fi