diff --git a/src/panels/lovelace/editor/config-elements/hui-entities-card-editor.ts b/src/panels/lovelace/editor/config-elements/hui-entities-card-editor.ts
index cbe983df57e2..5cac06cda627 100644
--- a/src/panels/lovelace/editor/config-elements/hui-entities-card-editor.ts
+++ b/src/panels/lovelace/editor/config-elements/hui-entities-card-editor.ts
@@ -44,6 +44,7 @@ const cardConfigStruct = object({
   title: optional(union([string(), boolean()])),
   entity: optional(entityId()),
   theme: optional(string()),
+  icon: optional(string()),
   show_header_toggle: optional(boolean()),
   state_color: optional(boolean()),
   entities: array(entitiesConfigStruct),