diff --git a/tests/test_tzfile.py b/tests/test_tzfile.py
index d7381288..54ef42dc 100644
--- a/tests/test_tzfile.py
+++ b/tests/test_tzfile.py
@@ -414,7 +414,7 @@ def test_tzpath_setting(tmp_path):
 
     with set_tzpath([tmp_path]):
         _copy_resource_to(
-            "liliput_tzif", os.path.join(tmp_path, "Fictional", "Liliput")
+            "liliput_tzif", os.path.join(str(tmp_path), "Fictional", "Liliput")
         )
         tz.gettz.cache_clear()