diff --git a/src/devices/nm-device-wireguard.c b/src/devices/nm-device-wireguard.c
index e3b8e8b4c4..572389b114 100644
--- a/src/devices/nm-device-wireguard.c
+++ b/src/devices/nm-device-wireguard.c
@@ -1517,17 +1517,6 @@ link_config_delayed_resolver_cb (gpointer user_data)
 	return G_SOURCE_REMOVE;
 }
 
-static NMActStageReturn
-act_stage1_prepare (NMDevice *device, NMDeviceStateReason *out_failure_reason)
-{
-	NMDeviceWireGuardPrivate *priv = NM_DEVICE_WIREGUARD_GET_PRIVATE (device);
-
-	priv->auto_default_route_initialized = FALSE;
-	priv->auto_default_route_priority_initialized = FALSE;
-
-	return NM_DEVICE_CLASS (nm_device_wireguard_parent_class)->act_stage1_prepare (device, out_failure_reason);
-}
-
 static NMActStageReturn
 act_stage2_config (NMDevice *device,
                    NMDeviceStateReason *out_failure_reason)
@@ -1968,7 +1957,6 @@ nm_device_wireguard_class_init (NMDeviceWireGuardClass *klass)
 	device_class->connection_type_check_compatible = NM_SETTING_WIREGUARD_SETTING_NAME;
 	device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_WIREGUARD);
 
-	device_class->act_stage1_prepare = act_stage1_prepare;
 	device_class->state_changed = device_state_changed;
 	device_class->create_and_realize = create_and_realize;
 	device_class->act_stage2_config = act_stage2_config;