diff --git a/tests/test_db_factory.py b/tests/test_db_factory.py
index a91a0c2..2978d92 100644
--- a/tests/test_db_factory.py
+++ b/tests/test_db_factory.py
@@ -71,8 +71,8 @@ class Control:
     CityObject.__table__.create(bind=repository.engine, checkfirst=True)
     SimulationResults.__table__.create(bind=repository.engine, checkfirst=True)
 
-    city_file = Path('tests/tests_data/test.geojson').resolve()
-    output_path = Path('tests/tests_outputs/').resolve()
+    city_file = (Path(__file__).parent / 'tests_data/test.geojson').resolve()
+    output_path = (Path(__file__).parent / 'tests_output').resolve()
     self._city = GeometryFactory('geojson',
                                  city_file,
                                  height_field='citygml_me',
@@ -114,7 +114,7 @@ class Control:
     )
     self._user_id = self._database.create_user('test', self._application_id, 'test', UserRoles.Admin)
 
-    self._pickle_path = Path('tests/tests_data/pickle_path.bz2').resolve()
+    self._pickle_path = (Path(__file__).parent / 'tests_data/pickle_path.bz2').resolve()
 
   @property
   def database(self):
diff --git a/tests/test_db_retrieve.py b/tests/test_db_retrieve.py
index 4795b2e..25fdb56 100644
--- a/tests/test_db_retrieve.py
+++ b/tests/test_db_retrieve.py
@@ -57,7 +57,7 @@ class Control:
     self._application_uuid = '60b7fc1b-f389-4254-9ffd-22a4cf32c7a3'
     self._application_id = 1
     self._user_id = 1
-    self._pickle_path = 'tests/tests_data/pickle_path.bz2'
+    self._pickle_path = (Path(__file__).parent / 'tests_data/pickle_path.bz2').resolve()
 
   @property
   def database(self):