diff --git a/tests/extract/local_test_installation.py b/tests/extract/local_test_installation.py
index 10a8200f8..89c5cb0c7 100644
--- a/tests/extract/local_test_installation.py
+++ b/tests/extract/local_test_installation.py
@@ -1,5 +1,14 @@
 import os
+import pathlib
+import sys
 from unittest import TestCase
+import unittest
+
+if not getattr(sys, "frozen", False):
+    thisfile_path = pathlib.Path(__file__).resolve()
+    project_root = thisfile_path.parents[2]
+    if project_root.joinpath("pykotor").exists():
+        sys.path.append(str(project_root))
 
 from pykotor.common.language import LocalizedString
 from pykotor.common.misc import Game
@@ -9,7 +18,6 @@
 from pykotor.resource.type import ResourceType
 from pykotor.tools.path import Path, locate_game_paths
 
-
 class TestInstallation(TestCase):
     def setUp(self) -> None:
         path = os.environ.get("K1_PATH")
@@ -381,3 +389,7 @@ def test_strings(self):
         self.assertEqual("default text", results[locstring1])
         self.assertEqual("Some text.", results[locstring2])
         self.assertEqual("ERROR: FATAL COMPILER ERROR", results[locstring3])
+
+
+if __name__ == "__main__":
+    unittest.main()
\ No newline at end of file