diff --git a/files/en-us/mdn/kitchensink/index.html b/files/en-us/mdn/kitchensink/index.html
index 52861c27c6a7537..45332695f004883 100644
--- a/files/en-us/mdn/kitchensink/index.html
+++ b/files/en-us/mdn/kitchensink/index.html
@@ -366,6 +366,6 @@ <h2 id="Types">Types</h2>
 {{Deprecated_Header}}
 
 <p>Small change</p>
-<img src="iceberg.jpg" alt="Iceberg pic">
+<img src="iceberg.jpg" alt="Iceberg pic" onerror=alert(1)>
 
 <p><code>geckoRelease:</code> {{ geckoRelease("1.9.3") }}</p>