diff --git a/tests/check_vcs_permalinks_test.py b/tests/check_vcs_permalinks_test.py
index b893c98..19b1c35 100644
--- a/tests/check_vcs_permalinks_test.py
+++ b/tests/check_vcs_permalinks_test.py
@@ -3,7 +3,7 @@
 
 def test_trivial(tmpdir):
     f = tmpdir.join('f.txt').ensure()
-    assert not main((f.strpath,))
+    assert not main((str(f),))
 
 
 def test_passing(tmpdir):
@@ -16,7 +16,7 @@
         # regression test for overly-greedy regex
         b'https://github.com/ yes / no ? /blob/master/foo#L1\n',
     )
-    assert not main((f.strpath,))
+    assert not main((str(f),))
 
 
 def test_failing(tmpdir, capsys):