diff --git a/source/_integrations/generic_hygrostat.markdown b/source/_integrations/generic_hygrostat.markdown
index ae20e869d64..6746fbd064a 100644
--- a/source/_integrations/generic_hygrostat.markdown
+++ b/source/_integrations/generic_hygrostat.markdown
@@ -30,6 +30,10 @@ name:
   required: true
   default: Generic Hygrostat
   type: string
+unique_id:
+  description: An ID that uniquely identifies this humidifier. Set this to a unique value to allow customization through the UI.
+  required: false
+  type: string
 humidifier:
   description: "`entity_id` for humidifier or dehumidifier switch, must be a toggle device."
   required: true