diff --git a/sensors/mqtt.yaml b/sensors/mqtt.yaml
index e29573f..5b61ead 100644
--- a/sensors/mqtt.yaml
+++ b/sensors/mqtt.yaml
@@ -2,3 +2,7 @@
   name: ZigBee Bridge state
   state_topic: "zigbee2mqtt/bridge/state"
   icon: mdi:router-wireless
+
+- platform: mqtt
+  name: Schaltertest Button Gelb
+  state_topic: "buttons/binary_sensor/button_yellow/state"