diff --git a/app/code/Magento/ConfigurableProduct/view/frontend/web/js/configurable.js b/app/code/Magento/ConfigurableProduct/view/frontend/web/js/configurable.js
index 358be4576dd3c..268782f7ba0cd 100644
--- a/app/code/Magento/ConfigurableProduct/view/frontend/web/js/configurable.js
+++ b/app/code/Magento/ConfigurableProduct/view/frontend/web/js/configurable.js
@@ -337,7 +337,7 @@ define([
         /**
          * Update gallery data
          *
-         * @param images
+         * @param {Array|undefined} images
          * @private
          */
         _updateGalleryData: function (images) {