diff --git a/radicale/config.py b/radicale/config.py
index edd01ac..d50224b 100644
--- a/radicale/config.py
+++ b/radicale/config.py
@@ -162,7 +162,7 @@ INITIAL_CONFIG = OrderedDict([
             "help": "path where collections are stored",
             "type": str}),
         ("max_sync_token_age", {
-            "value": 2592000,  # 30 days
+            "value": "2592000",  # 30 days
             "help": "delete sync token that are older",
             "type": int}),
         ("hook", {
diff --git a/radicale/tests/test_server.py b/radicale/tests/test_server.py
index 3254ae7..40a6298 100644
--- a/radicale/tests/test_server.py
+++ b/radicale/tests/test_server.py
@@ -107,9 +107,8 @@ class TestBaseServerRequests:
         status, _, _ = self.request("GET", "/")
         assert status == 302
 
+    @pytest.mark.skipif(not server.HAS_IPV6, reason="IPv6 not supported")
     def test_ipv6(self):
-        if not server.HAS_IPV6:
-            pytest.skip("IPv6 not supported")
         with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as sock:
             sock.setsockopt(server.IPPROTO_IPV6, server.IPV6_V6ONLY, 1)
             try: