Index: wp-includes/ms-blogs.php
===================================================================
--- wp-includes/ms-blogs.php	(revision 13621)
+++ wp-includes/ms-blogs.php	(working copy)
@@ -315,7 +315,7 @@
 	if ( 'siteurl' == $setting || 'home' == $setting || 'category_base' == $setting )
 		$value = untrailingslashit( $value );
 
-	if (! @unserialize( $value ) )
+	if (! maybe_unserialize( $value ) )
 		$value = stripslashes( $value );
 
 	return apply_filters( 'blog_option_' . $setting, maybe_unserialize( $value ), $blog_id );