diff --git a/x/btcbridge/types/bitcoin.go b/x/btcbridge/types/bitcoin.go
index a194aefa..86f7ac36 100644
--- a/x/btcbridge/types/bitcoin.go
+++ b/x/btcbridge/types/bitcoin.go
@@ -261,6 +261,7 @@ func AddUTXOToTx(tx *wire.MsgTx, utxo *UTXO) {
 	}
 
 	txIn.PreviousOutPoint = *wire.NewOutPoint(hash, uint32(utxo.Vout))
+	txIn.Sequence = MagicSequence
 
 	tx.AddTxIn(txIn)
 }
diff --git a/x/btcbridge/types/policy.go b/x/btcbridge/types/policy.go
index 17f327a1..250b69d1 100644
--- a/x/btcbridge/types/policy.go
+++ b/x/btcbridge/types/policy.go
@@ -16,6 +16,9 @@ const (
 
 	// allowed number of edicts in the runes payload for the runes deposit transaction
 	RunesEdictNum = 1
+
+	// transaction input sequence intended to identify the withdrawal txs (for relayers' convenience)
+	MagicSequence = 1<<31 + 0xde
 )
 
 // ExtractRecipientAddr extracts the recipient address for minting voucher token by the type of the asset to be deposited