diff --git a/tests/phpunit/tests/media.php b/tests/phpunit/tests/media.php
index 32c25b20fd..87e19da8db 100644
--- a/tests/phpunit/tests/media.php
+++ b/tests/phpunit/tests/media.php
@@ -396,7 +396,7 @@ VIDEO;
 		$expected = '<div style="width: ' . $w . 'px; max-width: 100%;" class="wp-video">' .
 			"<!--[if lt IE 9]><script>document.createElement('video');</script><![endif]-->\n" .
 			'<video class="wp-video-shortcode" id="video-' . $post_id . '-1" width="' . $w . '" height="' . $h . '" preload="metadata" controls="controls">' .
-			'<source type="video/mp4" src="http://domain.tld/wp-content/uploads/2013/12/xyz.mp4" />' .
+			'<source type="video/mp4" src="http://domain.tld/wp-content/uploads/2013/12/xyz.mp4?_=1" />' .
 			'<!-- WebM/VP8 for Firefox4, Opera, and Chrome --><source type="video/webm" src="myvideo.webm" />' .
 			'<!-- Ogg/Vorbis for older Firefox and Opera versions --><source type="video/ogg" src="myvideo.ogv" />' .
 			'<!-- Optional: Add subtitles for each language --><track kind="subtitles" src="subtitles.srt" srclang="en" />' .