diff --git a/programs/pluto/ikev2_parent.c b/programs/pluto/ikev2_parent.c

index 702c9a8..3772508 100644

--- a/programs/pluto/ikev2_parent.c

+++ b/programs/pluto/ikev2_parent.c

@@ -2150,7 +2150,7 @@ static stf_status ikev2_parent_inR1outI2_tail(struct state *pst, struct msg_dige

 					      struct pluto_crypto_req *r)

 {

 	struct connection *const pc = pst->st_connection;	/* parent connection */

-	struct ppk_id_payload ppk_id_p;

+	struct ppk_id_payload ppk_id_p = { };

 	struct ike_sa *ike = pexpect_ike_sa(pst);

 	if (!finish_dh_v2(pst, r, FALSE)) {