diff --git a/src/gmser_chain_objects.erl b/src/gmser_chain_objects.erl
index a9206cb..6e8c1af 100644
--- a/src/gmser_chain_objects.erl
+++ b/src/gmser_chain_objects.erl
@@ -126,6 +126,7 @@ tag(account_auth_update_tx) -> 149;
 tag(mint_tx) -> 150;
 tag(account_currency_store) -> 151;
 tag(account_currency_balance) -> 152;
+tag(exchange_tx) -> 153;
 tag(pof) -> 200;
 tag(ac_side_withdraw_tx) -> 300;
 tag(ac_side_rollup_tx) -> 301.
@@ -218,6 +219,7 @@ rev_tag(149) -> account_auth_update_tx;
 rev_tag(150) -> mint_tx;
 rev_tag(151) -> account_currency_store;
 rev_tag(152) -> account_currency_balance;
+rev_tag(153) -> exchange_tx;
 rev_tag(200) -> pof;
 rev_tag(300) -> ac_side_withdraw_tx;
 rev_tag(301) -> ac_side_rollup_tx.