diff --git a/extensions/amp-story/1.0/amp-story-page.js b/extensions/amp-story/1.0/amp-story-page.js
index 2b84901480ad7..e3dc87ca19836 100644
--- a/extensions/amp-story/1.0/amp-story-page.js
+++ b/extensions/amp-story/1.0/amp-story-page.js
@@ -237,7 +237,6 @@ export class AmpStoryPage extends AMP.BaseElement {
 
   /** @override */
   buildCallback() {
-    upgradeBackgroundAudio(this.element);
     this.delegateVideoAutoplay();
     this.markMediaElementsWithPreload_();
     this.initializeMediaPool_();
@@ -364,6 +363,7 @@ export class AmpStoryPage extends AMP.BaseElement {
 
   /** @override */
   layoutCallback() {
+    upgradeBackgroundAudio(this.element);
     this.muteAllMedia();
 
     return Promise.all([