diff --git a/wp-content/themes/twentyten/attachment.php b/wp-content/themes/twentyten/attachment.php
index c1f425e386..14fe382cbb 100644
--- a/wp-content/themes/twentyten/attachment.php
+++ b/wp-content/themes/twentyten/attachment.php
@@ -17,7 +17,7 @@
 
 				<p class="page-title"><a href="<?php echo get_permalink( $post->post_parent ); ?>" title="<?php esc_attr( printf( __( 'Return to %s', 'twentyten' ), get_the_title( $post->post_parent ) ) ); ?>" rel="gallery"><?php
 					/* translators: %s - title of parent post */
-					printf( __( '<span class="meta-nav">&larr;</span> %s' ), get_the_title( $post->post_parent ) );
+					printf( __( '<span class="meta-nav">&larr;</span> %s', 'twentyten' ), get_the_title( $post->post_parent ) );
 				?></a></p>
 
 				<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>