diff --git a/net/batman-adv/tp_meter.c b/net/batman-adv/tp_meter.c
index 8d7308327a9b..beabc264a4f1 100644
--- a/net/batman-adv/tp_meter.c
+++ b/net/batman-adv/tp_meter.c
@@ -1055,6 +1055,8 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
 	 * mesh_interface, hence its MTU
 	 */
 	tp_vars->cwnd = BATADV_TP_PLEN * 3;
+	tp_vars->dec_cwnd = 0;
+
 	/* at the beginning initialise the SS threshold to the biggest possible
 	 * window size, hence the AWND size
 	 */