diff --git a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/actual.js b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/actual.js
index ea52cc8f47..fb6ba1b013 100644
--- a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/actual.js
+++ b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/actual.js
@@ -40,3 +40,7 @@ var b = function (foo, ...bar) {
 var b = function (foo, baz, ...bar) {
   return bar.length;
 };
+
+function x (...rest) {
+  rest[0] = 0;
+}
diff --git a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/expected.js b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/expected.js
index 90cd7907df..d23fd1278f 100644
--- a/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/expected.js
+++ b/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/rest-member-expression-deoptimisation/expected.js
@@ -69,3 +69,11 @@ var b = function (foo) {
 var b = function (foo, baz) {
   return arguments.length - 2;
 };
+
+function x() {
+  for (var _len8 = arguments.length, rest = Array(_len8), _key8 = 0; _key8 < _len8; _key8++) {
+    rest[_key8] = arguments[_key8];
+  }
+
+  rest[0] = 0;
+}