diff --git a/src/vnet/ipsec/esp.h b/src/vnet/ipsec/esp.h
index cc12785..2f734aa 100644
--- a/src/vnet/ipsec/esp.h
+++ b/src/vnet/ipsec/esp.h
@@ -64,7 +64,7 @@
 always_inline int
 esp_seq_advance (ipsec_sa_t * sa)
 {
-  if (PREDICT_TRUE (ipsec_sa_is_set_USE_EXTENDED_SEQ_NUM (sa)))
+  if (PREDICT_TRUE (ipsec_sa_is_set_USE_ESN (sa)))
     {
       if (PREDICT_FALSE (sa->seq == ESP_SEQ_MAX))
 	{
@@ -104,7 +104,7 @@
   op->dst = signature;
   op->hmac_trunc_len = sa->integ_trunc_size;
 
-  if (ipsec_sa_is_set_USE_EXTENDED_SEQ_NUM (sa))
+  if (ipsec_sa_is_set_USE_ESN (sa))
     {
       u32 seq_hi = clib_host_to_net_u32 (sa->seq_hi);