diff --git a/index.d.ts b/index.d.ts
index 8202b6b14..d0b03e48b 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -4073,6 +4073,7 @@ declare namespace grapesjs {
   }
 
   interface Device extends Backbone.Model<DeviceOptions> {
+    id?: string,
     getName(): string;
     getWidthMedia(): string;
   }