diff --git a/packages/artplayer/types/component.d.ts b/packages/artplayer/types/component.d.ts
index e4a82c1df..9b64db4ef 100644
--- a/packages/artplayer/types/component.d.ts
+++ b/packages/artplayer/types/component.d.ts
@@ -10,6 +10,11 @@ export interface Selector {
    * Html string of selector
    */
   html: string | HTMLElement
+
+  /**
+   * Allow custom properties
+   */
+  [key: string]: any
 }
 
 export interface Component {