diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -1721,9 +1721,8 @@
     for (size_t i = 0; i < psbtx.tx->vin.size(); ++i) {
         PSBTInput &input = psbtx.inputs.at(i);
 
-        SignatureData sigdata;
-        complete &= SignPSBTInput(DUMMY_SIGNING_PROVIDER, *psbtx.tx, input,
-                                  sigdata, i, SigHashType());
+        complete &= SignPSBTInput(DUMMY_SIGNING_PROVIDER, *psbtx.tx, input, i,
+                                  SigHashType());
     }
 
     UniValue result(UniValue::VOBJ);
diff --git a/src/script/sign.h b/src/script/sign.h
--- a/src/script/sign.h
+++ b/src/script/sign.h
@@ -118,7 +118,7 @@
 // create a signature and is also filled by ProduceSignature in order to
 // construct final scriptSigs.
 struct SignatureData {
-    /// Stores whether the scriptSig and scriptWitness are complete.
+    /// Stores whether the scriptSig are complete.
     bool complete = false;
     /// The scriptSig of an input. Contains complete signatures or the
     /// traditional partial signatures format.
@@ -692,8 +692,7 @@
  * signed.
  */
 bool SignPSBTInput(const SigningProvider &provider,
-                   const CMutableTransaction &tx, PSBTInput &input,
-                   SignatureData &sigdata, int index,
+                   const CMutableTransaction &tx, PSBTInput &input, int index,
                    SigHashType sighash = SigHashType());
 
 /** Extract signature data from a transaction input, and insert it. */
diff --git a/src/script/sign.cpp b/src/script/sign.cpp
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -223,14 +223,15 @@
 }
 
 bool SignPSBTInput(const SigningProvider &provider,
-                   const CMutableTransaction &tx, PSBTInput &input,
-                   SignatureData &sigdata, int index, SigHashType sighash) {
+                   const CMutableTransaction &tx, PSBTInput &input, int index,
+                   SigHashType sighash) {
     // If this input has a final scriptsig, don't do anything with it.
     if (!input.final_script_sig.empty()) {
         return true;
     }
 
     // Fill SignatureData with input info
+    SignatureData sigdata;
     input.FillSignatureData(sigdata);
 
     // Get UTXO
@@ -245,6 +246,7 @@
     bool sig_complete =
         ProduceSignature(provider, creator, utxo.scriptPubKey, sigdata);
     input.FromSignatureData(sigdata);
+
     return sig_complete;
 }
 
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -5126,10 +5126,9 @@
                 "Specified sighash and sighash in PSBT do not match.");
         }
 
-        SignatureData sigdata;
         complete &=
             SignPSBTInput(HidingSigningProvider(pwallet, !sign, !bip32derivs),
-                          *psbtx.tx, input, sigdata, i, sighash_type);
+                          *psbtx.tx, input, i, sighash_type);
     }
 
     // Fill in the bip32 keypaths and redeemscripts for the outputs so that