diff --git a/tests/test_conf.py b/tests/test_conf.py
index acea8347..0573cfa6 100644
--- a/tests/test_conf.py
+++ b/tests/test_conf.py
@@ -1,9 +1,13 @@
 import importlib
+import os
 import unittest
 
 import osc.conf
 
 
+FIXTURES_DIR = os.path.join(os.path.dirname(__file__), "conf_fixtures")
+
+
 class TestConf(unittest.TestCase):
     def setUp(self):
         # reset the global `config` in preparation for running the tests
@@ -13,6 +17,9 @@ class TestConf(unittest.TestCase):
         # reset the global `config` to avoid impacting tests from other classes
         importlib.reload(osc.conf)
 
+    def _get_fixtures_dir(self):
+        return FIXTURES_DIR
+
     def test_bool_opts_defaults(self):
         config = osc.conf.config
         for opt in osc.conf._boolean_opts:
@@ -28,7 +35,8 @@ class TestConf(unittest.TestCase):
             self.assertIsInstance(config[opt], int, msg=f"option: '{opt}'")
 
     def test_bool_opts(self):
-        osc.conf.get_config()
+        oscrc = os.path.join(self._get_fixtures_dir(), "oscrc")
+        osc.conf.get_config(override_conffile=oscrc, override_no_keyring=True)
         config = osc.conf.config
         for opt in osc.conf._boolean_opts:
             if opt not in config:
@@ -36,7 +44,8 @@ class TestConf(unittest.TestCase):
             self.assertIsInstance(config[opt], bool, msg=f"option: '{opt}'")
 
     def test_int_opts(self):
-        osc.conf.get_config()
+        oscrc = os.path.join(self._get_fixtures_dir(), "oscrc")
+        osc.conf.get_config(override_conffile=oscrc, override_no_keyring=True)
         config = osc.conf.config
         for opt in osc.conf._integer_opts:
             if opt not in config: