diff --git a/ism7mqtt/CHANGELOG.md b/ism7mqtt/CHANGELOG.md
index 4f638c4..b88edf6 100644
--- a/ism7mqtt/CHANGELOG.md
+++ b/ism7mqtt/CHANGELOG.md
@@ -1,4 +1,5 @@
 ## What's Changed
+- Allow configuration of an external MQTT broker
 - Allow multiple instances of ism7mqtt to run.
 Exmaple config for additional devices:
 ```
diff --git a/ism7mqtt/config.yaml b/ism7mqtt/config.yaml
index 0d5d838..6abd03e 100644
--- a/ism7mqtt/config.yaml
+++ b/ism7mqtt/config.yaml
@@ -1,6 +1,6 @@
 name: "Ism7MQTT"
 description: "Addon for direct communication with a Wolf ISM7 module"
-version: "v0.0.14-2"
+version: "v0.0.14-3"
 slug: "ism7mqtt"
 init: false
 url: https://github.com/b3nn0/hassio-addon-ism7mqtt
@@ -33,6 +33,10 @@ schema:
   ism7_ip: str
   ism7_password: password
   interval: int
+  mqtt_host: "str?"
+  mqtt_user: "str?"
+  mqtt_password: "password?"
+
   debug_logging: bool
 
   additional_devices:
diff --git a/ism7mqtt/run.sh b/ism7mqtt/run.sh
index f75c382..1067992 100644
--- a/ism7mqtt/run.sh
+++ b/ism7mqtt/run.sh
@@ -2,12 +2,24 @@
 
 export CONFIG_PATH=/data/options.json
 
-export ISM7_MQTTHOST=$(bashio::services mqtt "host")
-export ISM7_MQTTUSERNAME=$(bashio::services mqtt "username")
-export ISM7_MQTTPASSWORD=$(bashio::services mqtt "password")
 export DEBUG_LOGGING=$(bashio::config 'debug_logging')
 
 
+export ISM7_MQTTHOST="$(bashio::config 'mqtt_host')"
+export ISM7_MQTTUSERNAME="$(bashio::config 'mqtt_user')"
+export ISM7_MQTTPASSWORD="$(bashio::config 'mqtt_password')"
+
+if [[ "$ISM7_MQTTHOST" == "null" ]]; then
+    export ISM7_MQTTHOST="$(bashio::services mqtt 'host')"
+    export ISM7_MQTTUSERNAME="$(bashio::services mqtt 'username')"
+    export ISM7_MQTTPASSWORD="$(bashio::services mqtt 'password')"
+    echo "Reading config from MQTT broker add-on: $ISM7_MQTTHOST/$ISM7_MQTTUSERNAME"
+else
+    echo "Using config from add-on configuration: $ISM7_MQTTHOST/$ISM7_MQTTUSERNAME"
+fi
+
+
+
 function start_ism7mqtt() {
     export ISM7_HOMEASSISTANT_ID=$1
     export ISM7_IP=$2
diff --git a/ism7mqtt/translations/de.yaml b/ism7mqtt/translations/de.yaml
index a9ffc02..935b283 100644
--- a/ism7mqtt/translations/de.yaml
+++ b/ism7mqtt/translations/de.yaml
@@ -15,5 +15,14 @@ configuration:
     description: >-
       Wenn weitere ISM7 Geräte vorhanden sind, können diese hier speizifiziert werden um mehrere ism7mqtt Instanzen zu starten.
       Wie diese genau konfiguriert werden müssen ist hier beschrieben: https://github.com/b3nn0/hassio-addon-ism7mqtt/blob/main/README.md
+  mqtt_host:
+    name: "Externer MQTT Broker Adresse"
+    description: "Nur nötig wenn der Broker nicht als Home Assistant Addon läuft"
+  mqtt_user:
+    name: "Externer MQTT Broker Benutzer"
+    description: "Nur nötig wenn der Broker nicht als Home Assistant Addon läuft"
+  mqtt_password:
+    name: "Externer MQTT Broker Passwort"
+    description: "Nur nötig wenn der Broker nicht als Home Assistant Addon läuft"
 
 
diff --git a/ism7mqtt/translations/en.yaml b/ism7mqtt/translations/en.yaml
index 9af58a5..28ade45 100644
--- a/ism7mqtt/translations/en.yaml
+++ b/ism7mqtt/translations/en.yaml
@@ -15,3 +15,12 @@ configuration:
     description: >-
       If you have multiple ISM7 Devices, specify them here to start ism7mqtt multiple times.
       See here for how to configure them: https://github.com/b3nn0/hassio-addon-ism7mqtt/blob/main/README.md
+  mqtt_host:
+    name: "External MQTT broker address"
+    description: "Only needed if the broker isn't running as a Home Assistant Addon"
+  mqtt_user:
+    name: "External MQTT broker user"
+    description: "Only needed if the broker isn't running as a Home Assistant Addon"
+  mqtt_password:
+    name: "External MQTT broker password"
+    description: "Only needed if the broker isn't running as a Home Assistant Addon"