diff --git a/wp-includes/rewrite.php b/wp-includes/rewrite.php
index f4623cc297..71d280287f 100644
--- a/wp-includes/rewrite.php
+++ b/wp-includes/rewrite.php
@@ -1518,7 +1518,7 @@ class WP_Rewrite {
 		}
 
 		// robots.txt
-		$robots_rewrite = array('robots.txt$' => $this->index . '?robots=1');
+		$robots_rewrite = array('robots\.txt$' => $this->index . '?robots=1');
 
 		//Default Feed rules - These are require to allow for the direct access files to work with permalink structure starting with %category%
 		$default_feeds = array(	'.*wp-atom.php$'	=>	$this->index .'?feed=atom',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 88be63b26e..648a9d57ac 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -15,6 +15,6 @@ $wp_version = '2.7-beta2-9638';
  *
  * @global int $wp_db_version
  */
-$wp_db_version = 9300;
+$wp_db_version = 9621;
 
 ?>