diff --git a/inc/jetpack.php b/inc/jetpack.php
index 90928ccc..0d1b5b5a 100644
--- a/inc/jetpack.php
+++ b/inc/jetpack.php
@@ -8,15 +8,21 @@
  */
 
 /**
- * Add theme support for Infinite Scroll.
+ * Jetpack setup function.
+ *
  * See: https://jetpack.me/support/infinite-scroll/
+ * See: https://jetpack.me/support/responsive-videos/
  */
 function _s_jetpack_setup() {
+	// Add theme support for Infinite Scroll.
 	add_theme_support( 'infinite-scroll', array(
 		'container' => 'main',
 		'render'    => '_s_infinite_scroll_render',
 		'footer'    => 'page',
 	) );
+
+	// Add theme support for Responsive Videos.
+	add_theme_support( 'jetpack-responsive-videos' );
 } // end function _s_jetpack_setup
 add_action( 'after_setup_theme', '_s_jetpack_setup' );