diff --git a/src/network/networkd-setlink.c b/src/network/networkd-setlink.c
index 4c0d3d23c3d..f9d774eee9e 100644
--- a/src/network/networkd-setlink.c
+++ b/src/network/networkd-setlink.c
@@ -232,7 +232,7 @@ static int link_configure_fill_message(
                         return r;
 
                 if (link->network->use_bpdu >= 0) {
-                        r = sd_netlink_message_append_u8(req, IFLA_BRPORT_GUARD, link->network->use_bpdu);
+                        r = sd_netlink_message_append_u8(req, IFLA_BRPORT_GUARD, !link->network->use_bpdu);
                         if (r < 0)
                                 return r;
                 }
@@ -256,7 +256,7 @@ static int link_configure_fill_message(
                 }
 
                 if (link->network->allow_port_to_be_root >= 0) {
-                        r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROTECT, link->network->allow_port_to_be_root);
+                        r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROTECT, !link->network->allow_port_to_be_root);
                         if (r < 0)
                                 return r;
                 }
diff --git a/test/networkd-test.py b/test/networkd-test.py
index 4b5ba622fa6..0a5ba11f89e 100755
--- a/test/networkd-test.py
+++ b/test/networkd-test.py
@@ -291,8 +291,8 @@ Priority=23
         self.assertEqual(self.read_attr('port2', 'brport/path_cost'), '555')
         self.assertEqual(self.read_attr('port2', 'brport/multicast_fast_leave'), '1')
         self.assertEqual(self.read_attr('port2', 'brport/unicast_flood'), '1')
-        self.assertEqual(self.read_attr('port2', 'brport/bpdu_guard'), '1')
-        self.assertEqual(self.read_attr('port2', 'brport/root_block'), '1')
+        self.assertEqual(self.read_attr('port2', 'brport/bpdu_guard'), '0')
+        self.assertEqual(self.read_attr('port2', 'brport/root_block'), '0')
 
 class ClientTestBase(NetworkdTestingUtilities):
     """Provide common methods for testing networkd against servers."""
diff --git a/test/test-network/systemd-networkd-tests.py b/test/test-network/systemd-networkd-tests.py
index ca96f794282..f3ec22aeee4 100755
--- a/test/test-network/systemd-networkd-tests.py
+++ b/test/test-network/systemd-networkd-tests.py
@@ -3786,8 +3786,8 @@ class NetworkdBridgeTests(unittest.TestCase, Utilities):
         self.check_bridge_port_attr('bridge99', 'dummy98', 'neigh_suppress',       '1', allow_enoent=True)
         self.check_bridge_port_attr('bridge99', 'dummy98', 'learning',             '0')
         self.check_bridge_port_attr('bridge99', 'dummy98', 'priority',             '23')
-        self.check_bridge_port_attr('bridge99', 'dummy98', 'bpdu_guard',           '1')
-        self.check_bridge_port_attr('bridge99', 'dummy98', 'root_block',           '1')
+        self.check_bridge_port_attr('bridge99', 'dummy98', 'bpdu_guard',           '0')
+        self.check_bridge_port_attr('bridge99', 'dummy98', 'root_block',           '0')
 
     def test_bridge_property(self):
         copy_network_unit('11-dummy.netdev', '12-dummy.netdev', '26-bridge.netdev',
@@ -3823,8 +3823,8 @@ class NetworkdBridgeTests(unittest.TestCase, Utilities):
         self.check_bridge_port_attr('bridge99', 'dummy98', 'neigh_suppress',       '1', allow_enoent=True)
         self.check_bridge_port_attr('bridge99', 'dummy98', 'learning',             '0')
         self.check_bridge_port_attr('bridge99', 'dummy98', 'priority',             '23')
-        self.check_bridge_port_attr('bridge99', 'dummy98', 'bpdu_guard',           '1')
-        self.check_bridge_port_attr('bridge99', 'dummy98', 'root_block',           '1')
+        self.check_bridge_port_attr('bridge99', 'dummy98', 'bpdu_guard',           '0')
+        self.check_bridge_port_attr('bridge99', 'dummy98', 'root_block',           '0')
 
         output = check_output('bridge -d link show test1')
         print(output)