diff --git a/src/wp-includes/media.php b/src/wp-includes/media.php
index bf663b2335..ad219926c4 100644
--- a/src/wp-includes/media.php
+++ b/src/wp-includes/media.php
@@ -1758,7 +1758,7 @@ function wp_video_shortcode( $attr, $content = '' ) {
 		}
 	}
 
-	$yt_pattern = '#^https?://(:?www\.)?(:?youtube\.com/watch|youtu\.be/)#';
+	$yt_pattern = '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#';
 
 	$primary = false;
 	if ( ! empty( $atts['src'] ) ) {