diff --git a/src/libhydra/plugins/kernel_klips/kernel_klips_ipsec.c b/src/libhydra/plugins/kernel_klips/kernel_klips_ipsec.c
index 0ccb2ac5f..cf9a3e1fd 100644
--- a/src/libhydra/plugins/kernel_klips/kernel_klips_ipsec.c
+++ b/src/libhydra/plugins/kernel_klips/kernel_klips_ipsec.c
@@ -1668,7 +1668,7 @@ static status_t group_ipip_sa(private_kernel_klips_ipsec_t *this,
 
 METHOD(kernel_ipsec_t, add_sa, status_t,
 	private_kernel_klips_ipsec_t *this, host_t *src, host_t *dst, u_int32_t spi,
-	u_int8_t protocol, u_int32_t reqid, mark_t mark,
+	u_int8_t protocol, u_int32_t reqid, mark_t mark, u_int32_t tfc,
 	lifetime_cfg_t *lifetime, u_int16_t enc_alg, chunk_t enc_key,
 	u_int16_t int_alg, chunk_t int_key, ipsec_mode_t mode,
 	u_int16_t ipcomp, u_int16_t cpi, bool encap, bool inbound,