diff --git a/src/komodo-tx.cpp b/src/komodo-tx.cpp
index 807c4fae4..67ac68cd4 100644
--- a/src/komodo-tx.cpp
+++ b/src/komodo-tx.cpp
@@ -52,8 +52,6 @@ uint64_t komodo_accrued_interest(int32_t *txheightp,uint32_t *locktimep,uint256
     return(0);
 }
 
-CKey *NSPV_defaultkey() { return(0); }
-
 static bool fCreateBlank;
 static std::map<std::string,UniValue> registers;
 static const int CONTINUE_EXECUTION=-1;
diff --git a/src/komodo_nSPV_superlite.h b/src/komodo_nSPV_superlite.h
index aeca64a9d..301dc9a2c 100644
--- a/src/komodo_nSPV_superlite.h
+++ b/src/komodo_nSPV_superlite.h
@@ -40,11 +40,6 @@ struct NSPV_ntzsproofresp NSPV_ntzsproofresult;
 struct NSPV_txproof NSPV_txproofresult;
 struct NSPV_utxo *NSPV_utxos;
 
-CKey *NSPV_defaultkey()
-{
-    return(&NSPV_key);
-}
-
 CNode *NSPV_req(CNode *pnode,uint8_t *msg,int32_t len,uint64_t mask,int32_t ind)
 {
     int32_t flag = 0; uint32_t timestamp = (uint32_t)time(NULL);
diff --git a/src/komodo_nSPV_wallet.h b/src/komodo_nSPV_wallet.h
index 7f460f716..cd54668b2 100644
--- a/src/komodo_nSPV_wallet.h
+++ b/src/komodo_nSPV_wallet.h
@@ -142,9 +142,21 @@ int64_t NSPV_addinputs(struct NSPV_utxoresp *used,CMutableTransaction &mtx,int64
     return(0);
 }
 
+bool NSPV_SignTx(CMutableTransaction &mtx,int32_t vini,int64_t utxovalue,const CScript scriptPubKey)
+{
+    CTransaction txNewConst(mtx); SignatureData sigdata; const CKeyStore &keystore;
+    auto consensusBranchId = CurrentEpochBranchId(chainActive.Height() + 1, Params().GetConsensus());
+    keystore.AddKey(NSPV_key);
+    if ( ProduceSignature(TransactionSignatureCreator(&keystore,&txNewConst,vini,utxovalue,SIGHASH_ALL),scriptPubKey,sigdata,consensusBranchId) != 0 )
+    {
+        UpdateTransaction(mtx,vini,sigdata);
+        return(true);
+    } else fprintf(stderr,"signing error for SignTx vini.%d %.8f\n",vini,(double)utxovalue/COIN);
+    return(false);
+}
+
 std::string NSPV_signtx(CMutableTransaction &mtx,uint64_t txfee,CScript opret,struct NSPV_utxoresp used[])
 {
-    auto consensusBranchId = CurrentEpochBranchId(chainActive.Height() + 1, Params().GetConsensus());
     CTransaction vintx; std::string hex; uint256 hashBlock; int64_t change,totaloutputs=0,totalinputs=0; int32_t i,utxovout,n;
     n = mtx.vout.size();
     for (i=0; i<n; i++)
diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index fbc01669b..685018828 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -37,7 +37,6 @@ typedef vector<unsigned char> valtype;
 extern uint8_t ASSETCHAINS_TXPOW;
 
 TransactionSignatureCreator::TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : BaseSignatureCreator(keystoreIn), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn) {}
-CKey *NSPV_defaultkey();
 
 bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode, uint32_t consensusBranchId, CKey *pprivKey, void *extraData) const
 {
@@ -45,11 +44,7 @@ bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig,
     if (pprivKey)
         key = *pprivKey;
     else if (!keystore || !keystore->GetKey(address, key))
-    {
-        if ( (pprivKey= NSPV_defaultkey()) == 0 )
-            return false;
-        else key = *pprivKey;
-    }
+        return false;
     
     uint256 hash;
     try {