# MutantHub mutant #530: Relational operator mutation at psbt.cpp:724
# Repository: bitcoin/bitcoin @ 2f72123f613f3aa1484ed06344039be78dedcb33
# File: src/psbt.cpp:724-724
# Review: APPROVED; outcome: KILLED
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -724,1 +724,1 @@
-            if (sig.second.back() != sighash) return PSBTError::SIGHASH_MISMATCH;
+            if (sig.second.back() == sighash) return PSBTError::SIGHASH_MISMATCH;