diff --git a/chain/signVerifier.go b/chain/signVerifier.go
index 28d4a92a8..693736885 100644
--- a/chain/signVerifier.go
+++ b/chain/signVerifier.go
@@ -138,7 +138,7 @@ func (sv *SignVerifier) verifyTx(comm component.IComponentRequester, tx *types.T
 			logger.Error().Err(err).Msg("failed to get verify because of opening contract error")
 			return false, err
 		}
-		address := name.GetOwner(cs, tx.Body.Account)
+		address := name.GetAddress(cs, tx.Body.Account)
 		err = key.VerifyTxWithAddress(tx, address)
 		if err != nil {
 			return false, err
diff --git a/mempool/mempool.go b/mempool/mempool.go
index 1b629df75..daf4e3f2b 100644
--- a/mempool/mempool.go
+++ b/mempool/mempool.go
@@ -519,7 +519,7 @@ func (mp *MemPool) removeOnBlockArrival(block *types.Block) error {
 			account := tx.GetBody().GetAccount()
 			recipient := tx.GetBody().GetRecipient()
 			if tx.HasNameAccount() {
-				account = mp.getOwner(account) // it's for the case that tx sender is named smart contract
+				account = mp.getAddress(account)
 			}
 			if tx.HasNameRecipient() {
 				recipient = mp.getAddress(recipient)