Index: upgrade.php
===================================================================
--- upgrade.php	(revision 2809)
+++ upgrade.php	(working copy)
@@ -77,7 +77,7 @@
 	upgrade_all();
 ?> 
 <h2><?php _e('Step 1'); ?></h2> 
-	<p><?php printf(__("There's actually only one step. So if you see this, you're done. <a href='%s'>Have fun</a>!"), __get_option('home')); ?></p>
+	<p><?php printf(__("There's actually only one step. So if you see this, you're done. <a href='%s'>Have fun</a>!"), __get_option('home') . '/'); ?></p>
 
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 <pre>