diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5b0e984c6..a058022257 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,11 @@ _Note: Gaps between patch versions are faulty/broken releases._
 
 See [CHANGELOG - 6to5](CHANGELOG-6to5.md) for the pre-4.0.0 version changelog.
 
+## 5.1.13
+
+ * **Polish**
+  * Remove symbol check from `defineProperty` helper.
+
 ## 5.1.12
 
  * **Bug Fix**
diff --git a/src/babel/transformation/templates/helper-define-property.js b/src/babel/transformation/templates/helper-define-property.js
index c7587d180a..dca42eeabb 100644
--- a/src/babel/transformation/templates/helper-define-property.js
+++ b/src/babel/transformation/templates/helper-define-property.js
@@ -1,7 +1,7 @@
 (function (obj, key, value) {
   return Object.defineProperty(obj, key, {
     value: value,
-    enumerable: key == null || typeof Symbol == "undefined" || key.constructor !== Symbol,
+    enumerable: true,
     configurable: true,
     writable: true
   });