diff --git a/wp-admin/install.php b/wp-admin/install.php
index d7e12bdc8e..4acb98b9a6 100644
--- a/wp-admin/install.php
+++ b/wp-admin/install.php
@@ -60,7 +60,6 @@ function display_header() {
 	<title><?php _e( 'WordPress &rsaquo; Installation' ); ?></title>
 	<?php 
 	wp_admin_css( 'install', true );
-	wp_admin_css( 'buttons', true );
 	?>
 </head>
 <body<?php if ( is_rtl() ) echo ' class="rtl"'; ?>>
diff --git a/wp-admin/maint/repair.php b/wp-admin/maint/repair.php
index 3604b41533..f838214f7d 100644
--- a/wp-admin/maint/repair.php
+++ b/wp-admin/maint/repair.php
@@ -18,7 +18,6 @@ header( 'Content-Type: text/html; charset=utf-8' );
 	<title><?php _e( 'WordPress &rsaquo; Database Repair' ); ?></title>
 	<?php 
 	wp_admin_css( 'install', true );
-	wp_admin_css( 'buttons', true );
 	?>
 </head>
 <body>
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index 0aff889908..0393390365 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -530,7 +530,7 @@ function wp_default_styles( &$styles ) {
 	$styles->add( 'colors-classic', "/wp-admin/css/colors-classic$suffix.css", array('wp-admin', 'buttons') );
 
 	$styles->add( 'media', "/wp-admin/css/media$suffix.css" );
-	$styles->add( 'install', "/wp-admin/css/install$suffix.css" );
+	$styles->add( 'install', "/wp-admin/css/install$suffix.css", array('buttons') );
 	$styles->add( 'thickbox', '/wp-includes/js/thickbox/thickbox.css' );
 	$styles->add( 'farbtastic', '/wp-admin/css/farbtastic.css', array(), '1.3u1' );
 	$styles->add( 'wp-color-picker', "/wp-admin/css/color-picker$suffix.css" );
