diff --git a/libnm/nm-device-ip-tunnel.c b/libnm/nm-device-ip-tunnel.c
index ad107155b8..928748aa0d 100644
--- a/libnm/nm-device-ip-tunnel.c
+++ b/libnm/nm-device-ip-tunnel.c
@@ -531,7 +531,7 @@ nm_device_ip_tunnel_class_init (NMDeviceIPTunnelClass *bond_class)
 	 * NMDeviceIPTunnel:flow-label:
 	 *
 	 * The flow label to assign to tunnel packets. This property
-     * applies only to IPv6 tunnels.
+	 * applies only to IPv6 tunnels.
 	 *
 	 * Since: 1.2
 	 **/