diff --git a/config.lua b/config.lua
index 9b3f2ff..3750fb7 100644
--- a/config.lua
+++ b/config.lua
@@ -166,6 +166,15 @@ automation.device_manager:add(ContactSensor.new({
 	},
 }))
 
+automation.device_manager:add(ContactSensor.new({
+	identifier = "hallway_trash",
+	topic = mqtt_z2m("hallway/trash"),
+	client = mqtt_client,
+	trigger = {
+		devices = { hallway_lights },
+	},
+}))
+
 local bedroom_air_filter = AirFilter.new({
 	name = "Air Filter",
 	room = "Bedroom",
diff --git a/src/devices/contact_sensor.rs b/src/devices/contact_sensor.rs
index d2f5dbe..c3231b3 100644
--- a/src/devices/contact_sensor.rs
+++ b/src/devices/contact_sensor.rs
@@ -54,7 +54,7 @@ pub struct ContactSensorConfig {
     pub identifier: String,
     #[device_config(flatten)]
     pub mqtt: MqttDeviceConfig,
-    #[device_config(from_lua)]
+    #[device_config(from_lua, default)]
     pub presence: Option<PresenceDeviceConfig>,
     #[device_config(from_lua)]
     pub trigger: Option<TriggerConfig>,