diff --git a/wp-content/themes/twentyeleven/single.php b/wp-content/themes/twentyeleven/single.php
index 46c81fc74f..9d138eaba5 100644
--- a/wp-content/themes/twentyeleven/single.php
+++ b/wp-content/themes/twentyeleven/single.php
@@ -15,7 +15,7 @@ get_header(); ?>
 				<?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>
 
 					<nav id="nav-single">
-						<h1 class="assistive-text"><?php _e( 'Post navigation', 'toolbox' ); ?></h1>
+						<h1 class="assistive-text"><?php _e( 'Post navigation', 'twentyeleven' ); ?></h1>
 						<span class="nav-previous"><?php previous_post_link( '%link', __( '&larr; Previous', 'twentyeleven' ) ); ?></span>
 						<span class="nav-next"><?php next_post_link( '%link', __( 'Next &rarr;', 'twentyeleven' ) ); ?></span>
 					</nav><!-- #nav-single -->