diff --git a/tests/test_run.py b/tests/test_run.py
index 1f706847..356a2e9c 100644
--- a/tests/test_run.py
+++ b/tests/test_run.py
@@ -71,7 +71,7 @@ def test_parse_arguments(capsys, tmpdir):
     assert "optional arguments" in out
 
     assert run.parse_arguments(["--host", "192.168.1.1"]).host == "192.168.1.1"
-    assert run.parse_arguments([]).host == "0.0.0.0"
+    assert run.parse_arguments([]).host == "localhost"
     server_config["host"] = "192.168.1.2"
     assert run.parse_arguments(["--host", "192.168.1.1"]).host == "192.168.1.1"
     assert run.parse_arguments([]).host == "192.168.1.2"