diff --git a/admin/woocommerce-admin-settings-forms.php b/admin/woocommerce-admin-settings-forms.php
index a025d676aeb..0d230542028 100644
--- a/admin/woocommerce-admin-settings-forms.php
+++ b/admin/woocommerce-admin-settings-forms.php
@@ -195,6 +195,7 @@ function woocommerce_admin_fields($options) {
 
     foreach ( $options as $value ) {
     	if ( ! isset( $value['type'] ) ) continue;
+    	if ( ! isset( $value['id'] ) ) $value['id'] = '';
     	if ( ! isset( $value['name'] ) ) $value['name'] = '';
     	if ( ! isset( $value['class'] ) ) $value['class'] = '';
     	if ( ! isset( $value['css'] ) ) $value['css'] = '';