diff --git a/wp-includes/media.php b/wp-includes/media.php
index 368c7f2cac..1cf047eead 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -770,8 +770,8 @@ function gallery_shortcode($attr) {
 			#{$selector} .gallery-caption {
 				margin-left: 0;
 			}
-		</style>
-		<!-- see gallery_shortcode() in wp-includes/media.php -->";
+			/* see gallery_shortcode() in wp-includes/media.php */
+		</style>";
 	$size_class = sanitize_html_class( $size );
 	$gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
 	$output = apply_filters( 'gallery_style', $gallery_style . "\n\t\t" . $gallery_div );