diff --git a/test/cli.js b/test/cli.js
index 89dee95b..f5f64b03 100644
--- a/test/cli.js
+++ b/test/cli.js
@@ -1,4 +1,8 @@
 [
+  {
+    args: ["run", "test/fixtures/interop-test.mjs"],
+    expect: { code: 0 }
+  },
   {
     args: ["run", "test/integration/test.ts"],
     expect: { code: 0 }
diff --git a/test/fixtures/interop-test.mjs b/test/fixtures/interop-test.mjs
new file mode 100644
index 00000000..3dae82a0
--- /dev/null
+++ b/test/fixtures/interop-test.mjs
@@ -0,0 +1,7 @@
+import { strictEqual } from 'assert';
+import * as z from './interop.cjs';
+
+strictEqual(z.s, 's');
+strictEqual(z.__esModule, true);
+strictEqual(z.default.default, 'z');
+strictEqual(z.default.s, 's');
diff --git a/test/fixtures/interop.cjs b/test/fixtures/interop.cjs
new file mode 100644
index 00000000..f5b8ac30
--- /dev/null
+++ b/test/fixtures/interop.cjs
@@ -0,0 +1,5 @@
+Object.defineProperty(exports, '__esModule', { value: true });
+exports.s = 's';
+exports['com' + 'puted'] = 'y';
+exports.default = 'z';
+