Index: wp-includes/post-template.php
===================================================================
--- wp-includes/post-template.php	(revision 11216)
+++ wp-includes/post-template.php	(working copy)
@@ -801,7 +801,7 @@
  * @param array|string $args
  */
 function wp_page_menu( $args = array() ) {
-	$defaults = array('sort_column' => 'post_title', 'menu_class' => 'menu', 'echo' => true, 'link_before' => '', 'link_after' => '');
+	$defaults = array('sort_column' => 'post_title', 'menu_class' => 'menu', 'echo' => true, 'link_before' => '', 'link_after' => '', 'show_home' => '');
 	$args = wp_parse_args( $args, $defaults );
 	$args = apply_filters( 'wp_page_menu_args', $args );
 
@@ -810,8 +810,8 @@
 	$list_args = $args;
 
 	// Show Home in the menu
-	if ( isset($args['show_home']) && ! empty($args['show_home']) ) {
-		if ( true === $args['show_home'] || '1' === $args['show_home'] || 1 === $args['show_home'] )
+	if ( ! empty($args['show_home']) ) {
+		if ( '1' === (string) $args['show_home'] )
 			$text = __('Home');
 		else
 			$text = $args['show_home'];