diff --git a/wp-content/themes/twentyeleven/functions.php b/wp-content/themes/twentyeleven/functions.php
index 5095bf063d..82237642cf 100644
--- a/wp-content/themes/twentyeleven/functions.php
+++ b/wp-content/themes/twentyeleven/functions.php
@@ -375,7 +375,8 @@ add_filter( 'get_the_excerpt', 'twentyeleven_custom_excerpt_more' );
  * Get our wp_nav_menu() fallback, wp_page_menu(), to show a home link.
  */
 function twentyeleven_page_menu_args( $args ) {
-	$args['show_home'] = true;
+	if ( ! isset( $args['show_home'] ) )
+		$args['show_home'] = true;
 	return $args;
 }
 add_filter( 'wp_page_menu_args', 'twentyeleven_page_menu_args' );
diff --git a/wp-content/themes/twentyten/functions.php b/wp-content/themes/twentyten/functions.php
index 35d6563d13..67be12ccd5 100644
--- a/wp-content/themes/twentyten/functions.php
+++ b/wp-content/themes/twentyten/functions.php
@@ -224,7 +224,8 @@ endif;
  * @since Twenty Ten 1.0
  */
 function twentyten_page_menu_args( $args ) {
-	$args['show_home'] = true;
+	if ( ! isset( $args['show_home'] ) )
+		$args['show_home'] = true;
 	return $args;
 }
 add_filter( 'wp_page_menu_args', 'twentyten_page_menu_args' );
diff --git a/wp-content/themes/twentytwelve/functions.php b/wp-content/themes/twentytwelve/functions.php
index 6f8757707d..deddfc4c38 100644
--- a/wp-content/themes/twentytwelve/functions.php
+++ b/wp-content/themes/twentytwelve/functions.php
@@ -190,7 +190,8 @@ add_filter( 'wp_title', 'twentytwelve_wp_title', 10, 2 );
  * @since Twenty Twelve 1.0
  */
 function twentytwelve_page_menu_args( $args ) {
-	$args['show_home'] = true;
+	if ( ! isset( $args['show_home'] ) )
+		$args['show_home'] = true;
 	return $args;
 }
 add_filter( 'wp_page_menu_args', 'twentytwelve_page_menu_args' );