diff --git a/docs/tutorials/ui.md b/docs/tutorials/ui.md
index 6cdaf9546f..54ea4b6818 100644
--- a/docs/tutorials/ui.md
+++ b/docs/tutorials/ui.md
@@ -30,7 +30,7 @@ Set up controls with HTML data attributes:
The data-shaka-player-cast-receiver-id tag allows you to provide a Cast Application ID that
the cast button will cast to; the value provided here is the sample cast receiver. -->
+ data-shaka-player-cast-receiver-id="8D8C71A7">
@@ -111,7 +111,7 @@ set up a listener for the 'caststatuschanged' events.
+ data-shaka-player-cast-receiver-id="8D8C71A7">
```
@@ -139,7 +139,7 @@ casting to an Android receiver app.
```html