diff --git a/test/test_streamlayerformat.py b/test/test_streamlayerformat.py
index 4ec639126..63a525491 100644
--- a/test/test_streamlayerformat.py
+++ b/test/test_streamlayerformat.py
@@ -337,5 +337,18 @@ class TestStreamLayerMerger(unittest.TestCase):
     self.assertHasFile(squashed, 'foobar/baz/some_file', 'foo')
     self.assertDoesNotHaveFile(squashed, 'foo/another_file')
 
+  def test_delete_root_directory(self):
+    third_layer = self.create_layer(
+      foo = 'build/first_file',
+      bar = 'build/second_file')
+
+    second_layer = self.create_layer(
+      _ = 'build')
+
+    squashed = self.squash_layers([second_layer, third_layer])
+
+    self.assertDoesNotHaveFile(squashed, 'build/first_file')
+    self.assertDoesNotHaveFile(squashed, 'build/second_file')
+
 if __name__ == '__main__':
   unittest.main()