diff --git a/wp-content/themes/twentyfifteen/header.php b/wp-content/themes/twentyfifteen/header.php
index adc83b1169..f6a3852f2e 100644
--- a/wp-content/themes/twentyfifteen/header.php
+++ b/wp-content/themes/twentyfifteen/header.php
@@ -37,7 +37,7 @@
 					<?php endif;
 
 					$description = get_bloginfo( 'description', 'display' );
-					if ( ! empty( $description ) ) : ?>
+					if ( ! empty( $description ) || is_customize_preview() ) : ?>
 						<p class="site-description"><?php echo esc_html( $description ); ?></p>
 					<?php endif;
 				?>