diff --git a/functions.php b/functions.php
index 5d9c82a45..21d678e6b 100644
--- a/functions.php
+++ b/functions.php
@@ -372,7 +372,7 @@ endif;
 function twentytwelve_body_class( $classes ) {
 	$background_color = get_background_color();
 
-	if ( ! is_active_sidebar( 'sidebar-1' ) || is_page_template( 'full-width-page.php' ) )
+	if ( ! is_active_sidebar( 1 ) || is_page_template( 'full-width-page.php' ) )
 		$classes[] = 'full-width';
 
 	if ( is_page_template( 'homepage.php' ) && has_post_thumbnail() )
@@ -394,7 +394,7 @@ add_filter( 'body_class', 'twentytwelve_body_class' );
  * @since Twenty Twelve 1.0
  */
 function twentytwelve_content_width() {
-	if ( is_page_template( 'full-width-page.php' ) || is_attachment() || ! is_active_sidebar( 'sidebar-1' ) ) {
+	if ( is_page_template( 'full-width-page.php' ) || is_attachment() || ! is_active_sidebar( 1 ) ) {
 		global $content_width;
 		$content_width = 960;
 	}
diff --git a/sidebar-home.php b/sidebar-home.php
index 2712b9b2d..4629c9c2a 100644
--- a/sidebar-home.php
+++ b/sidebar-home.php
@@ -23,13 +23,13 @@ if ( ! is_active_sidebar( 2 ) && ! is_active_sidebar( 3 ) )
 <div id="secondary" <?php twentytwelve_homepage_sidebar_class(); ?> role="complementary">
 	<?php if ( is_active_sidebar( 2 ) ) : ?>
 	<div class="first home-widgets">
-		<?php dynamic_sidebar( 'sidebar-2' ); ?>
+		<?php dynamic_sidebar( 2 ); ?>
 	</div><!-- .first -->
 	<?php endif; ?>
 
 	<?php if ( is_active_sidebar( 3 ) ) : ?>
 	<div class="second home-widgets">
-		<?php dynamic_sidebar( 'sidebar-3' ); ?>
+		<?php dynamic_sidebar( 3 ); ?>
 	</div><!-- .second -->
 	<?php endif; ?>
 </div><!-- #secondary -->
\ No newline at end of file
diff --git a/sidebar.php b/sidebar.php
index 2bc4969ae..151fbc44f 100644
--- a/sidebar.php
+++ b/sidebar.php
@@ -10,8 +10,8 @@
  */
 ?>
 
-	<?php if ( is_active_sidebar( 'sidebar-1' ) ) : ?>
+	<?php if ( is_active_sidebar( 1 ) ) : ?>
 		<div id="secondary" class="widget-area" role="complementary">
-			<?php dynamic_sidebar( 'sidebar-1' ); ?>
+			<?php dynamic_sidebar( 1 ); ?>
 		</div><!-- #secondary -->
 	<?php endif; ?>
\ No newline at end of file