diff --git a/src/lightning-stubs/button/button.js b/src/lightning-stubs/button/button.js
index 84c2e862..4e664c8d 100644
--- a/src/lightning-stubs/button/button.js
+++ b/src/lightning-stubs/button/button.js
@@ -16,4 +16,5 @@ export default class Button extends LightningElement {
     @api value;
     @api variant;
     @api disableAnimation;
+    @api stretch;
 }