diff --git a/pelican/plugins/sitemap/test_sitemap.py b/pelican/plugins/sitemap/test_sitemap.py
index 2a69990..0622433 100644
--- a/pelican/plugins/sitemap/test_sitemap.py
+++ b/pelican/plugins/sitemap/test_sitemap.py
@@ -1,3 +1,4 @@
+import importlib.resources
 from pathlib import Path
 from shutil import rmtree
 from tempfile import mkdtemp
@@ -8,7 +9,7 @@
 
 from . import sitemap
 
-BASE_DIR = Path(".").resolve()
+BASE_DIR = importlib.resources.files(__package__)
 TEST_DATA = BASE_DIR / "test_data"
 
 
@@ -24,6 +25,7 @@ def tearDown(self):
     def _run_pelican(self, sitemap_format):
         settings = read_settings(
             override={
+                "PATH": BASE_DIR,
                 "CACHE_CONTENT": False,
                 "SITEURL": "http://localhost",
                 "CONTENT": TEST_DATA,