diff --git a/lib/internal/assert/assertion_error.js b/lib/internal/assert/assertion_error.js
index f12243790b0506..5d8c45040af0fe 100644
--- a/lib/internal/assert/assertion_error.js
+++ b/lib/internal/assert/assertion_error.js
@@ -6,9 +6,9 @@ const {
   Error,
   ErrorCaptureStackTrace,
   MathMax,
+  ObjectAssign,
   ObjectDefineProperty,
   ObjectGetPrototypeOf,
-  ObjectKeys,
   String,
   StringPrototypeEndsWith,
   StringPrototypeRepeat,
@@ -46,11 +46,7 @@ const kReadableOperator = {
 const kMaxShortLength = 12;
 
 function copyError(source) {
-  const keys = ObjectKeys(source);
-  const target = { __proto__: ObjectGetPrototypeOf(source) };
-  for (const key of keys) {
-    target[key] = source[key];
-  }
+  const target = ObjectAssign({ __proto__: ObjectGetPrototypeOf(source) }, source);
   ObjectDefineProperty(target, 'message', { __proto__: null, value: source.message });
   return target;
 }