diff --git a/examples/offscreen-canvas.html b/examples/offscreen-canvas.html
index 741d469e23..192af39c4f 100644
--- a/examples/offscreen-canvas.html
+++ b/examples/offscreen-canvas.html
@@ -6,5 +6,9 @@ docs: >
   The map in this example is rendered in a web worker, using `OffscreenCanvas`. **Note:** This is currently only supported in Chrome and Edge.
 tags: "worker, offscreencanvas, vector-tiles"
 experimental: true
+cloak:
+  - key: get_your_own_D6rA4zTHduk6KOKTXzGB
+    value: Get your own API key at https://www.maptiler.com/cloud/
+
 ---
 <div id="map" class="map"></div>