diff --git a/wp-content/themes/openlab/lib/cbox-polyfills/class-cbox-group-type.php b/wp-content/themes/openlab/lib/cbox-polyfills/class-cbox-group-type.php
index de4c243a2d..02f30dc7c4 100644
--- a/wp-content/themes/openlab/lib/cbox-polyfills/class-cbox-group-type.php
+++ b/wp-content/themes/openlab/lib/cbox-polyfills/class-cbox-group-type.php
@@ -30,6 +30,7 @@ public function get_label() {
 	 */
 	public function get_site_template_id() {
 		$site_template_ids = get_option( 'openlab_group_type_default_site_template_ids' );
+		$site_template_ids = array_map( 'intval', $site_template_ids );
 
 		$saved_site_template_is_valid = false;