diff --git a/CHANGELOG.md b/CHANGELOG.md
index af8f3d3b36..c8eac47e1b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ Gaps between patch versions are faulty/broken releases.
 ## 2.0.2
 
  * Inherit comments in `for-of` transformer.
+ * Remove `interopRequire` from `system` module formatter.
 
 ## 2.0.1
 
diff --git a/lib/6to5/transformation/modules/amd.js b/lib/6to5/transformation/modules/amd.js
index 4c046d5f98..f40d2de60b 100644
--- a/lib/6to5/transformation/modules/amd.js
+++ b/lib/6to5/transformation/modules/amd.js
@@ -83,7 +83,7 @@ AMDFormatter.prototype.importSpecifier = function (specifier, node, nodes) {
 
   if (t.isImportBatchSpecifier(specifier)) {
     // import * as bar from "foo";
-  } else if (t.isSpecifierDefault(specifier)) {
+  } else if (t.isSpecifierDefault(specifier) && !this.noInteropRequire) {
     // import foo from "foo";
     ref = t.callExpression(this.file.addDeclaration("interop-require"), [ref]);
   } else {
diff --git a/lib/6to5/transformation/modules/system.js b/lib/6to5/transformation/modules/system.js
index 7257753e65..e9d109bbbd 100644
--- a/lib/6to5/transformation/modules/system.js
+++ b/lib/6to5/transformation/modules/system.js
@@ -8,6 +8,7 @@ var _                = require("lodash");
 
 function SystemFormatter(file) {
   this.exportIdentifier  = file.generateUidIdentifier("export");
+  this.noInteropRequire = true;
 
   AMDFormatter.apply(this, arguments);
 
diff --git a/test/fixtures/transformation/es6-modules-system/imports-default/expected.js b/test/fixtures/transformation/es6-modules-system/imports-default/expected.js
index cf232b07ec..b94c9036b5 100644
--- a/test/fixtures/transformation/es6-modules-system/imports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-system/imports-default/expected.js
@@ -7,9 +7,8 @@ System.register("es6-modules-system/imports-default/expected", ["foo"], function
     execute: function () {
       "use strict";
 
-      var foo = _foo.default;
-
-      var foo = _foo.default;
+      var foo = _foo["default"];
+      var foo = _foo["default"];
     }
   };
-});
\ No newline at end of file
+});
diff --git a/test/fixtures/transformation/es6-modules-system/imports-mixing/expected.js b/test/fixtures/transformation/es6-modules-system/imports-mixing/expected.js
index 716ba91637..69e5643e12 100644
--- a/test/fixtures/transformation/es6-modules-system/imports-mixing/expected.js
+++ b/test/fixtures/transformation/es6-modules-system/imports-mixing/expected.js
@@ -7,9 +7,8 @@ System.register("es6-modules-system/imports-mixing/expected", ["foo"], function
     execute: function () {
       "use strict";
 
-      var foo = _foo.default;
-
+      var foo = _foo["default"];
       var xyz = _foo.baz;
     }
   };
-});
\ No newline at end of file
+});
diff --git a/test/fixtures/transformation/es6-modules-system/overview/expected.js b/test/fixtures/transformation/es6-modules-system/overview/expected.js
index 2eb9fa61af..3fa3abda80 100644
--- a/test/fixtures/transformation/es6-modules-system/overview/expected.js
+++ b/test/fixtures/transformation/es6-modules-system/overview/expected.js
@@ -11,7 +11,8 @@ System.register("es6-modules-system/overview/expected", ["foo", "foo-bar", "./di
     execute: function () {
       "use strict";
 
-      var foo = _foo.default;
+      var foo = _foo["default"];
+      var foo = _foo;
       var bar = _foo.bar;
       var bar = _foo.foo;
       _export("test", test);
@@ -21,4 +22,4 @@ System.register("es6-modules-system/overview/expected", ["foo", "foo-bar", "./di
       _export("default", test);
     }
   };
-});
\ No newline at end of file
+});