diff --git a/src/vnet/ipsec/ipsec_output.c b/src/vnet/ipsec/ipsec_output.c
index 1b8070d..e86292c 100644
--- a/src/vnet/ipsec/ipsec_output.c
+++ b/src/vnet/ipsec/ipsec_output.c
@@ -270,8 +270,15 @@
 	{
 	  if (p0->policy == IPSEC_POLICY_ACTION_PROTECT)
 	    {
+	      u32 sa_index = 0;
+	      ipsec_sa_t *sa = 0;
 	      nc_protect++;
-	      next_node_index = im->esp_encrypt_node_index;
+	      sa_index = ipsec_get_sa_index_by_sa_id (p0->sa_id);
+	      sa = pool_elt_at_index (im->sad, sa_index);
+	      if (sa->protocol == IPSEC_PROTOCOL_ESP)
+		next_node_index = im->esp_encrypt_node_index;
+	      else
+		next_node_index = im->ah_encrypt_node_index;
 	      vnet_buffer (b0)->ipsec.sad_index = p0->sa_index;
 	      vlib_buffer_advance (b0, iph_offset);
 	      p0->counter.packets++;