# MutantHub mutant #613: Arithmetic operator mutation at descriptor.cpp:524
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:524-524
# Review: APPROVED; outcome: KILLED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -524,1 +524,1 @@
-        out = EncodeExtKey(key) + FormatHDKeypath(m_path, /*apostrophe=*/m_apostrophe);
+        out = EncodeExtKey(key) - FormatHDKeypath(m_path, /*apostrophe=*/m_apostrophe);