diff --git a/sys/netipsec/ipsec.c b/sys/netipsec/ipsec.c
index 245feb1bdca9..7b7f4d05ea4e 100644
--- a/sys/netipsec/ipsec.c
+++ b/sys/netipsec/ipsec.c
@@ -1323,6 +1323,8 @@ ipsec_updatereplay(uint32_t seq, struct secasvar *sav)
 		    __func__, replay->overflow,
 		    ipsec_sa2str(sav, buf, sizeof(buf))));
 	}
+
+	replay->count++;
 	return (0);
 }