diff --git a/src/wp-includes/js/mediaelement/wp-mediaelement.js b/src/wp-includes/js/mediaelement/wp-mediaelement.js
index 17f80519a2..db1bccd4d2 100644
--- a/src/wp-includes/js/mediaelement/wp-mediaelement.js
+++ b/src/wp-includes/js/mediaelement/wp-mediaelement.js
@@ -44,7 +44,7 @@
 			$( '.wp-audio-shortcode, .wp-video-shortcode' )
 				.not( '.mejs-container' )
 				.filter(function () {
-					return ! $( this ).parent().hasClass( '.mejs-mediaelement' );
+					return ! $( this ).parent().hasClass( 'mejs-mediaelement' );
 				})
 				.mediaelementplayer( settings );
 		}