diff --git a/scripts/migrate-db.php b/scripts/migrate-db.php
index e7580bd..939b539 100644
--- a/scripts/migrate-db.php
+++ b/scripts/migrate-db.php
@@ -109,10 +109,10 @@ function copy_feeds(PDO $db, $user_id, array $feeds)
             $feed['feed_url'],
             $feed['site_url'],
             $feed['title'],
-            $feed['enabled'] ?: 1,
-            $feed['download_content'] ?: 0,
-            $feed['rtl'] ?: 0,
-            $feed['cloak_referrer'] ?: 0,
+            isset($feed['enabled']) ? (int) $feed['enabled'] : 1,
+            isset($feed['download_content']) ? (int) $feed['download_content'] : 0,
+            isset($feed['rtl']) ? (int) $feed['rtl'] : 0,
+            isset($feed['cloak_referrer']) ? (int) $feed['cloak_referrer'] : 0,
         ));
 
         $feed_ids[$feed['id']] = $db->lastInsertId();
@@ -135,12 +135,12 @@ function copy_items(PDO $db, $user_id, array $feed_ids, array $items)
             $feed_ids[$item['feed_id']],
             $item['id'],
             $item['status'],
-            $item['bookmark'] ?: 0,
+            isset($item['bookmark']) ? (int) $item['bookmark'] : 0,
             $item['url'],
             $item['title'],
             $item['author'],
             $item['content'],
-            $item['updated'] ?: 0,
+            isset($item['updated']) ? (int) $item['updated'] : 0,
             $item['enclosure'],
             $item['enclosure_type'],
             $item['language'],