diff --git a/plugins/calendar/drivers/database/database_driver.php b/plugins/calendar/drivers/database/database_driver.php
index 6603e76b..0c231d3d 100644
--- a/plugins/calendar/drivers/database/database_driver.php
+++ b/plugins/calendar/drivers/database/database_driver.php
@@ -1318,7 +1318,15 @@ class database_driver extends calendar_driver
      */
     private function add_attachment($attachment, $event_id)
     {
-        $data = $attachment['data'] ? $attachment['data'] : file_get_contents($attachment['path']);
+        if (isset($attachment['data'])) {
+            $data = $attachment['data'];
+        }
+        else if (!empty($attachment['path'])) {
+            $data = file_get_contents($attachment['path']);
+        }
+        else {
+            return false;
+        }
 
         $query = $this->rc->db->query(
             "INSERT INTO `{$this->db_attachments}`"