diff --git a/test/async.js b/test/async.js
index 56399f6..36be617 100644
--- a/test/async.js
+++ b/test/async.js
@@ -49,6 +49,13 @@ test('file exits', async t => {
 	await t.throwsAsync(makeDir(fp), {code: 'EEXIST'});
 });
 
+test('parent dir is file', async t => {
+	const fp = tempy.file();
+	fs.writeFileSync(fp, '');
+	const error = await t.throwsAsync(makeDir(fp + '/sub/dir'));
+	t.regex(error.code, /ENOTDIR|EEXIST/);
+});
+
 test('root dir', async t => {
 	if (process.platform === 'win32') {
 		// Do not assume that `C:` is current drive
diff --git a/test/sync.js b/test/sync.js
index 2787d8d..689076d 100644
--- a/test/sync.js
+++ b/test/sync.js
@@ -51,6 +51,15 @@ test('file exits', t => {
 	}, {code: 'EEXIST'});
 });
 
+test('parent dir is file', t => {
+	const fp = tempy.file();
+	fs.writeFileSync(fp, '');
+	const error = t.throws(() => {
+		makeDir.sync(fp + '/sub/dir');
+	});
+	t.regex(error.code, /ENOTDIR|EEXIST/);
+});
+
 test('root dir', t => {
 	if (process.platform === 'win32') {
 		// Do not assume that `C:` is current drive