# MutantHub mutant #541: Logical operator mutation at psbt.cpp:771
# Repository: bitcoin/bitcoin @ 2f72123f613f3aa1484ed06344039be78dedcb33
# File: src/psbt.cpp:771-771
# Review: APPROVED; outcome: SURVIVED
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -771,1 +771,1 @@
-        if (input.witness_utxo.IsNull() || !input.witness_utxo.scriptPubKey.IsWitnessProgram(wit_ver, wit_prog)) {
+        if (input.witness_utxo.IsNull() && !input.witness_utxo.scriptPubKey.IsWitnessProgram(wit_ver, wit_prog)) {