diff --git a/freqtrade/tests/test_arguments.py b/freqtrade/tests/test_arguments.py
index d3272d0af..940b3811b 100644
--- a/freqtrade/tests/test_arguments.py
+++ b/freqtrade/tests/test_arguments.py
@@ -129,5 +129,5 @@ def test_parse_args_hyperopt_custom() -> None:
     assert call_args.epochs == 20
     assert call_args.loglevel == logging.INFO
     assert call_args.subparser == 'hyperopt'
-    assert call_args.spaces == 'buy'
+    assert call_args.spaces == ['buy']
     assert call_args.func is not None
diff --git a/freqtrade/tests/test_configuration.py b/freqtrade/tests/test_configuration.py
index d7420337f..20b377ddf 100644
--- a/freqtrade/tests/test_configuration.py
+++ b/freqtrade/tests/test_configuration.py
@@ -281,5 +281,5 @@ def test_hyperopt_space_argument(mocker, default_conf, caplog) -> None:
     configuration = Configuration(args)
     config = configuration.get_config()
     assert 'spaces' in config
-    assert config['spaces'] is 'all'
-    assert tt.log_has('Parameter -s/--spaces detected: all', caplog.record_tuples)
+    assert config['spaces'] == ['all']
+    assert tt.log_has('Parameter -s/--spaces detected: [\'all\']', caplog.record_tuples)