diff --git a/src/index.js b/src/index.js
index fda8e55..6931504 100644
--- a/src/index.js
+++ b/src/index.js
@@ -57,7 +57,7 @@ export class Component extends HTMLElement {
     this[__props__].forEach((options, prop) => {
       list.push(options.attrName)
     })
-    return list
+    return list.concat(this.watches || [])
   }
 
   static parseAnim() {