diff --git a/php/class-oembed.php b/php/class-oembed.php
index a063281..f5b7372 100644
--- a/php/class-oembed.php
+++ b/php/class-oembed.php
@@ -392,6 +392,7 @@ private function filter_legal_args( $provider, $args ) {
 				'loop',
 				'api',
 				'player_id',
+				'background',
 			),
 
 			// DailyMotion.com