diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index a69db61faa..3b2cbb9a7e 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -1765,13 +1765,13 @@ UniValue converttopsbt(const JSONRPCRequest& request)
 
     // Remove all scriptSigs and scriptWitnesses from inputs
     for (CTxIn& input : tx.vin) {
-        if ((!input.scriptSig.empty()) && (request.params[1].isNull() || (!request.params[1].isNull() && request.params[1].get_bool()))) {
+        if (!input.scriptSig.empty() && !permitsigdata) {
             throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Inputs must not have scriptSigs");
         }
         input.scriptSig.clear();
     }
     for (CTxInWitness& witness: tx.witness.vtxinwit) {
-        if ((!witness.scriptWitness.IsNull()) && (request.params[1].isNull() || (!request.params[1].isNull() && request.params[1].get_bool()))) {
+        if (!witness.scriptWitness.IsNull() && !permitsigdata) {
             throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Inputs must not have scriptWitnesses");
         }
     }