diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c
index 018c1d465a..9e7aba6751 100644
--- a/src/core/dbus-manager.c
+++ b/src/core/dbus-manager.c
@@ -3044,7 +3044,7 @@ const sd_bus_vtable bus_manager_vtable[] = {
         SD_BUS_WRITABLE_PROPERTY("ServiceWatchdogs", "b", bus_property_get_bool, bus_property_set_bool, offsetof(Manager, service_watchdogs), 0),
         SD_BUS_PROPERTY("ControlGroup", "s", NULL, offsetof(Manager, cgroup_root), 0),
         SD_BUS_PROPERTY("SystemState", "s", property_get_system_state, 0, 0),
-        SD_BUS_PROPERTY("ExitCode", "y", bus_property_get_unsigned, offsetof(Manager, return_value), 0),
+        SD_BUS_PROPERTY("ExitCode", "y", NULL, offsetof(Manager, return_value), 0),
         SD_BUS_PROPERTY("DefaultTimerAccuracyUSec", "t", bus_property_get_usec, offsetof(Manager, defaults.timer_accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("DefaultTimeoutStartUSec", "t", bus_property_get_usec, offsetof(Manager, defaults.timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("DefaultTimeoutStopUSec", "t", bus_property_get_usec, offsetof(Manager, defaults.timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),