diff --git a/packages/core-js/features/object/to-string.js b/packages/core-js/features/object/to-string.js
new file mode 100644
index 000000000000..8ce2a175ab88
--- /dev/null
+++ b/packages/core-js/features/object/to-string.js
@@ -0,0 +1,6 @@
+require('../../modules/es.object.to-string');
+var classof = require('../../internals/classof');
+
+module.exports = function (it) {
+  return '[object ' + classof(it) + ']';
+};
diff --git a/tests/commonjs.js b/tests/commonjs.js
index c3427fab04a2..609fff181ebe 100644
--- a/tests/commonjs.js
+++ b/tests/commonjs.js
@@ -28,6 +28,7 @@ for (const _PATH of ['../packages/core-js-pure', '../packages/core-js']) {
   ok(load('features/object/prevent-extensions')({}));
   ok(load('features/object/seal')({}));
   ok(load('features/object/set-prototype-of')({}, []) instanceof Array);
+  ok(load('features/object/to-string')([]) === '[object Array]');
   ok(load('features/object/entries')({ q: 2 })[0][0] === 'q');
   ok(load('features/object/values')({ q: 2 })[0] === 2);
   ok(load('features/object/get-own-property-descriptors')({ q: 1 }).q.enumerable);