diff --git a/api/rest-api-filters/hook.php b/api/rest-api-filters/hook.php
index fc9113c6d84..65f331ee829 100644
--- a/api/rest-api-filters/hook.php
+++ b/api/rest-api-filters/hook.php
@@ -1,6 +1,6 @@
 <?php
 
-$filters = get_option(WCA_Test_Helper_Rest_Api_Filters::WC_ADMIN_TEST_HELPER_REST_API_FILTER_OPTION);
+$filters = get_option(WCA_Test_Helper_Rest_Api_Filters::WC_ADMIN_TEST_HELPER_REST_API_FILTER_OPTION, [] );
 
 function array_dot_set( &$array, $key, $value ) {
     if ( is_null( $key ) ) {