diff --git a/db/db.code.version.txt b/db/db.code.version.txt
index e702a30..6c41245 100644
--- a/db/db.code.version.txt
+++ b/db/db.code.version.txt
@@ -1 +1 @@
-188
+189
diff --git a/db/db.update.189.sql b/db/db.update.189.sql
new file mode 100644
index 0000000..69db8f9
--- /dev/null
+++ b/db/db.update.189.sql
@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS `schedule_registrations_users_link` (
+  `schedule_registrations_id` int(11) NOT NULL,
+  `users_uid` int(11) NOT NULL,
+  PRIMARY KEY (`schedule_registrations_id`,`users_uid`)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;