# MutantHub mutant #567: Arithmetic operator mutation at descriptor.cpp:169
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:169-169
# Review: APPROVED; outcome: KILLED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -169,1 +169,1 @@
-std::string AddChecksum(const std::string& str) { return str + "#" + DescriptorChecksum(str); }
+std::string AddChecksum(const std::string& str) { return str - "#" + DescriptorChecksum(str); }