diff --git a/source/_components/sensor.template.markdown b/source/_components/sensor.template.markdown
index ca42bcaf90f..925cec40b11 100644
--- a/source/_components/sensor.template.markdown
+++ b/source/_components/sensor.template.markdown
@@ -35,6 +35,7 @@ Configuration variables:
   - **unit_of_measurement** (*Optional*): Defines the units of measurement of the sensor, if any.
   - **value_template** (*Optional*): Defines a [template](/topics/templating/) to extract a value from the payload.
   - **warnings** (*Optional*): Turn off warnings (useful if the sensor is loaded before devices it depends on).
+  - **entity_id** (*Optional*): Add a list of entity_ids so the sensor only reacts to state changes of these entities. This will reduce the number of times the sensor will try to update it's state.
 
 
 ## {% linkable_title Examples %}