diff --git a/includes/admin/reports/class-wc-report-customer-list.php b/includes/admin/reports/class-wc-report-customer-list.php
index 5eeb8021792..dd1d3f024e0 100644
--- a/includes/admin/reports/class-wc-report-customer-list.php
+++ b/includes/admin/reports/class-wc-report-customer-list.php
@@ -222,6 +222,8 @@ class WC_Report_Customer_List extends WP_List_Table {
 
 	/**
 	 * Get columns.
+	 *
+	 * @return array
 	 */
 	public function get_columns() {
 		$columns = array(
@@ -240,6 +242,8 @@ class WC_Report_Customer_List extends WP_List_Table {
 
 	/**
 	 * Order users by name.
+	 *
+	 * @param WP_User_Query $query
 	 */
 	public function order_by_last_name( $query ) {
 		global $wpdb;
diff --git a/includes/admin/wc-admin-functions.php b/includes/admin/wc-admin-functions.php
index d36d86a9c8a..73252387bf3 100644
--- a/includes/admin/wc-admin-functions.php
+++ b/includes/admin/wc-admin-functions.php
@@ -159,6 +159,7 @@ function woocommerce_update_options( $options ) {
  * Get a setting from the settings API.
  *
  * @param mixed $option_name
+ * @param mixed $default
  * @return string
  */
 function woocommerce_settings_get_option( $option_name, $default = '' ) {