diff --git a/src/sql/database.sql b/src/sql/database.sql
index 69454b7a..0c218795 100644
--- a/src/sql/database.sql
+++ b/src/sql/database.sql
@@ -20,13 +20,14 @@ CREATE TABLE `client_endpoints` (
 -- Create syntax for TABLE 'oauth_sessions'
 CREATE TABLE `oauth_sessions` (
   `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
-  `client_id` varchar(32) CHARACTER SET latin1 NOT NULL DEFAULT '',
-  `redirect_uri` varchar(250) CHARACTER SET latin1 NOT NULL DEFAULT '',
-  `owner_type` enum('user','client') CHARACTER SET latin1 NOT NULL DEFAULT 'user',
-  `owner_id` varchar(255) CHARACTER SET latin1 DEFAULT NULL,
-  `auth_code` varchar(40) CHARACTER SET latin1 DEFAULT '',
-  `access_token` varchar(40) CHARACTER SET latin1 DEFAULT '',
-  `stage` enum('requested','granted') CHARACTER SET latin1 NOT NULL DEFAULT 'requested',
+  `client_id` varchar(32) NOT NULL DEFAULT '',
+  `redirect_uri` varchar(250) NOT NULL DEFAULT '',
+  `owner_type` enum('user','client') NOT NULL DEFAULT 'user',
+  `owner_id` varchar(255) DEFAULT NULL,
+  `auth_code` varchar(40) DEFAULT '',
+  `access_token` varchar(40) DEFAULT '',
+  `access_token_expires` int(10) DEFAULT NULL,
+  `stage` enum('requested','granted') NOT NULL DEFAULT 'requested',
   `first_requested` int(10) unsigned NOT NULL,
   `last_updated` int(10) unsigned NOT NULL,
   PRIMARY KEY (`id`),