diff --git a/tests/unit/autocomplete/autocomplete_core.js b/tests/unit/autocomplete/autocomplete_core.js
index 6f1195910..2961cb09a 100644
--- a/tests/unit/autocomplete/autocomplete_core.js
+++ b/tests/unit/autocomplete/autocomplete_core.js
@@ -195,7 +195,7 @@ test( ".replaceWith() (#9172)", function() {
 		replacement = "<div>test</div>",
 		parent = element.parent();
 	element.replaceWith( replacement );
-	equal( parent.html(), replacement );
+	equal( parent.html().toLowerCase(), replacement );
 });
 
 }( jQuery ) );