diff --git a/tests/check_executables_have_shebangs_test.py b/tests/check_executables_have_shebangs_test.py
index 9c70334..5895a2a 100644
--- a/tests/check_executables_have_shebangs_test.py
+++ b/tests/check_executables_have_shebangs_test.py
@@ -25,7 +25,7 @@
 def test_has_shebang(content, tmpdir):
     path = tmpdir.join('path')
     path.write(content, 'wb')
-    assert main((path.strpath,)) == 0
+    assert main((str(path),)) == 0
 
 
 @skip_win32  # pragma: win32 no cover
@@ -41,7 +41,7 @@
 def test_bad_shebang(content, tmpdir, capsys):
     path = tmpdir.join('path')
     path.write(content, 'wb')
-    assert main((path.strpath,)) == 1
+    assert main((str(path),)) == 1
     _, stderr = capsys.readouterr()
     assert stderr.startswith(f'{path}: marked executable but')