diff --git a/packages/__tests__/esm.test.js b/packages/__tests__/esm.test.js
new file mode 100644
index 0000000..e14785d
--- /dev/null
+++ b/packages/__tests__/esm.test.js
@@ -0,0 +1,13 @@
+/**
+* @filename esm.test.js
+* @summary smoketest esm output
+*/
+import test from 'tape';
+
+// @test ESM
+test('runs as ESM', (t) => {
+  t.doesNotThrow(async () => {
+    await import('../index.js');
+  }, 'should not throw');
+  t.end();
+});