diff --git a/bmlt-meeting-list.php b/bmlt-meeting-list.php
index 28d33eb..c84b85b 100644
--- a/bmlt-meeting-list.php
+++ b/bmlt-meeting-list.php
@@ -1026,7 +1026,7 @@ function bmlt_meeting_list($atts = null, $content = null)
             $result = json_decode(wp_remote_retrieve_body($results), true);
             if (!empty($this->options['extra_meetings'])) {
                 $extras = "";
-                foreach ($this->options['extra_meetings'] as $value) {
+                foreach ((array)$this->options['extra_meetings'] as $value) {
                     $data = array(" [", "]");
                     $value = str_replace($data, "", $value);
                     $extras .= "&meeting_ids[]=".$value;