diff --git a/tests/php/Model/SiteTreeTest.php b/tests/php/Model/SiteTreeTest.php
index e0130dcbef..eb30159516 100644
--- a/tests/php/Model/SiteTreeTest.php
+++ b/tests/php/Model/SiteTreeTest.php
@@ -2106,8 +2106,8 @@ public function provideSanitiseExtraMeta(): array
                 'Multiple attributes are removed'
             ],
             [
-                '<link rel="canonical" href="valid" ;;// somethingdodgy < onmouseover=alert(1)',
-                '<link rel="canonical" href="valid" somethingdodgy="">',
+                '<link rel="canonical" href="valid" ;;// somethingdodgy <onmouseover=alert(1)>',
+                '<link rel="canonical" href="valid" somethingdodgy=""><onmouseover></onmouseover>',
                 'Invalid HTML is converted to valid HTML and parsed'
             ],
         ];