diff --git a/source/_lovelace/entities.markdown b/source/_lovelace/entities.markdown
index 6b9c90d8d15..bd0354087bc 100644
--- a/source/_lovelace/entities.markdown
+++ b/source/_lovelace/entities.markdown
@@ -74,7 +74,7 @@ image:
   type: string
 secondary_info:
   required: false
-  description: "Show additional info. Values: `entity-id`, `last-changed`, `last-triggered` (only for automations and scripts), `position` or `tilt-position` (only for supported covers)."
+  description: "Show additional info. Values: `entity-id`, `last-changed`, `last-triggered` (only for automations and scripts), `position` or `tilt-position` (only for supported covers), `brightness` (only for lights)."
   type: string
 format:
   required: false