diff --git a/loop-templates/content-single.php b/loop-templates/content-single.php
index a38acf6..b9a975c 100644
--- a/loop-templates/content-single.php
+++ b/loop-templates/content-single.php
@@ -4,7 +4,7 @@
  */
 ?>
 
-<article id="post-<?php the_ID(); ?>" <?php post_class(); ?> class="content-single-item">
+<article id="post-<?php the_ID(); ?>" <?php post_class('content-single-item'); ?>>
 
 	<header class="entry-header">