diff --git a/modules/sdk-coin-starknet/src/lib/iface.ts b/modules/sdk-coin-starknet/src/lib/iface.ts
index 3614a410ae..ff859b524a 100644
--- a/modules/sdk-coin-starknet/src/lib/iface.ts
+++ b/modules/sdk-coin-starknet/src/lib/iface.ts
@@ -40,6 +40,8 @@ export interface StarknetTransactionData {
   constructorCalldata?: string[];
   /** DEPLOY_ACCOUNT: address salt derived from pubkey. */
   contractAddressSalt?: string;
+  /** DEPLOY_ACCOUNT: deployed contract address (== senderAddress). Required by HSM firmware. */
+  contractAddress?: string;
 }
 
 export interface InvokeTransactionHashParams {
diff --git a/modules/sdk-coin-starknet/src/lib/transaction.ts b/modules/sdk-coin-starknet/src/lib/transaction.ts
index 95466f8c45..b585ae3c5c 100644
--- a/modules/sdk-coin-starknet/src/lib/transaction.ts
+++ b/modules/sdk-coin-starknet/src/lib/transaction.ts
@@ -69,6 +69,7 @@ export class Transaction extends BaseTransaction {
 
       this._starknetTransactionData = {
         senderAddress: parsed.senderAddress,
+        contractAddress: parsed.contractAddress,
         calls: parsed.calls || [],
         nonce: parsed.nonce,
         chainId: parsed.chainId,
diff --git a/modules/sdk-coin-starknet/src/lib/walletInitializationBuilder.ts b/modules/sdk-coin-starknet/src/lib/walletInitializationBuilder.ts
index 85555aa0b9..2c239db36c 100644
--- a/modules/sdk-coin-starknet/src/lib/walletInitializationBuilder.ts
+++ b/modules/sdk-coin-starknet/src/lib/walletInitializationBuilder.ts
@@ -83,6 +83,7 @@ export class WalletInitializationBuilder extends TransactionBuilder {
 
     const data: StarknetTransactionData = {
       senderAddress: contractAddress,
+      contractAddress,
       calls: [],
       nonce,
       chainId,