diff --git a/tools/migrate_cycle.php b/tools/migrate_cycle.php
new file mode 100644
index 00000000..c7f05336
--- /dev/null
+++ b/tools/migrate_cycle.php
@@ -0,0 +1,11 @@
+<?php
+require dirname(__FILE__) . '/inc/cli.php';
+
+# edited_at column was using DATETIME when time column uses INT(11). This script solves that.
+
+$boards = listBoards(TRUE);
+#$boards = array('test2');
+
+foreach ($boards as $i => $b) {
+	query(sprintf('ALTER TABLE ``posts_%s`` ADD COLUMN cycle INT(1) NOT NULL AFTER locked', $b));
+}