diff --git a/tests/test_write.py b/tests/test_write.py
index 1da10ab9..63206137 100644
--- a/tests/test_write.py
+++ b/tests/test_write.py
@@ -60,6 +60,13 @@ def test_write_sect_widths_12():
 '''
 
 
+def test_write_to_filename():
+    las = read(egfn("sample_write_sect_widths_12.las"))
+    las.write('test.las', version=1.2)
+    assert os.path.isfile('test.las')
+    os.remove('test.las')
+
+
 def test_write_sect_widths_12_curves():
     l = read(egfn("sample_write_sect_widths_12.las"))
     s = StringIO()