# MutantHub mutant #592: Arithmetic operator mutation at descriptor.cpp:407
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:407-407
# Review: APPROVED; outcome: KILLED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -407,1 +407,1 @@
-        std::copy(m_root_extkey.vchFingerprint, m_root_extkey.vchFingerprint + sizeof(ret.vchFingerprint), ret.vchFingerprint);
+        std::copy(m_root_extkey.vchFingerprint, m_root_extkey.vchFingerprint - sizeof(ret.vchFingerprint), ret.vchFingerprint);