diff --git a/types.go b/types.go
index f793e57..c39b2a5 100644
--- a/types.go
+++ b/types.go
@@ -5,6 +5,7 @@ import (
 )
 
 type ActionTrace struct {
+	TxID     eos.Checksum256 `json:"tx_id"`
 	Receiver eos.Name        `json:"receiver"`
 	Contract eos.AccountName `json:"contract"`
 	Action   eos.ActionName  `json:"action"`