diff --git a/examples/zoomify.js b/examples/zoomify.js
index 91d606792d..8a79e6d889 100644
--- a/examples/zoomify.js
+++ b/examples/zoomify.js
@@ -1,3 +1,4 @@
+// NOCHECK we can't check this example as it causes CORS violations in PhantomJS
 goog.require('ol.Map');
 goog.require('ol.RendererHint');
 goog.require('ol.View2D');