diff --git a/src/test/resources/epub3/files/epub/package-manifest-prop-scripted-declared-but-unnecessary-error/EPUB/content_001.xhtml b/src/test/resources/epub3/files/epub/package-manifest-prop-scripted-declared-but-unnecessary-error/EPUB/content_001.xhtml
index ea29a1610..bbe5c2f24 100644
--- a/src/test/resources/epub3/files/epub/package-manifest-prop-scripted-declared-but-unnecessary-error/EPUB/content_001.xhtml
+++ b/src/test/resources/epub3/files/epub/package-manifest-prop-scripted-declared-but-unnecessary-error/EPUB/content_001.xhtml
@@ -3,6 +3,9 @@
 	<head>
 		<meta charset="utf-8"/>
 		<title>Minimal EPUB</title>
+		<script type="application/vnd.xyz">
+			xyz
+		</script>
 	</head>
 	<body>
 		<h1>Loomings</h1>
