3 files changed, 6 insertions, 8 deletions
diff --git a/src/script/bitcoinconsensus.cpp b/src/script/bitcoinconsensus.cpp
index 036d6ca7bf..be7fa5d3b7 100644
--- a/src/script/bitcoinconsensus.cpp
+++ b/src/script/bitcoinconsensus.cpp
@@ -93,8 +93,9 @@ static int verify_script(const unsigned char *scriptPubKey, unsigned int scriptP
 
         // Regardless of the verification result, the tx did not error.
         set_error(err, bitcoinconsensus_ERR_OK);
+
         PrecomputedTransactionData txdata(tx);
-        return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), nIn < tx.wit.vtxinwit.size() ? &tx.wit.vtxinwit[nIn].scriptWitness : NULL, flags, TransactionSignatureChecker(&tx, nIn, amount, txdata), NULL);
+        return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), &tx.vin[nIn].scriptWitness, flags, TransactionSignatureChecker(&tx, nIn, amount, txdata), NULL);
     } catch (const std::exception&) {
         return set_error(err, bitcoinconsensus_ERR_TX_DESERIALIZE); // Error deserializing
     }
diff --git a/src/script/script.h b/src/script/script.h
index 278774d32e..76419c1495 100644
--- a/src/script/script.h
+++ b/src/script/script.h
@@ -656,6 +656,8 @@ struct CScriptWitness
 
     bool IsNull() const { return stack.empty(); }
 
+    void SetNull() { stack.clear(); stack.shrink_to_fit(); }
+
     std::string ToString() const;
 };
 
diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index f552ad5bba..b008df2591 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -194,9 +194,7 @@ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nI
     SignatureData data;
     assert(tx.vin.size() > nIn);
     data.scriptSig = tx.vin[nIn].scriptSig;
-    if (tx.wit.vtxinwit.size() > nIn) {
-        data.scriptWitness = tx.wit.vtxinwit[nIn].scriptWitness;
-    }
+    data.scriptWitness = tx.vin[nIn].scriptWitness;
     return data;
 }
 
@@ -204,10 +202,7 @@ void UpdateTransaction(CMutableTransaction& tx, unsigned int nIn, const Signatur
 {
     assert(tx.vin.size() > nIn);
     tx.vin[nIn].scriptSig = data.scriptSig;
-    if (!data.scriptWitness.IsNull() || tx.wit.vtxinwit.size() > nIn) {
-        tx.wit.vtxinwit.resize(tx.vin.size());
-        tx.wit.vtxinwit[nIn].scriptWitness = data.scriptWitness;
-    }
+    tx.vin[nIn].scriptWitness = data.scriptWitness;
 }
 
 bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType)