diff --git a/node_modules/zxcvbn/lib/matching.js b/node_modules/zxcvbn/lib/matching.js
index 3940bad..748da8b 100644
--- a/node_modules/zxcvbn/lib/matching.js
+++ b/node_modules/zxcvbn/lib/matching.js
@@ -13,7 +13,7 @@ build_ranked_dict = function(ordered_list) {
   i = 1;
   for (o = 0, len1 = ordered_list.length; o < len1; o++) {
     word = ordered_list[o];
-    result[word] = i;
+    Reflect.defineProperty(result, word, { value: i, configurable: true, enumerable: true, writable: true });
     i += 1;
   }
   return result;