# MutantHub mutant #772: Arithmetic operator mutation at descriptor.cpp:1869
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:1869-1869
# Review: APPROVED; outcome: KILLED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -1869,1 +1869,1 @@
-            substitutes->placeholder_index = path.size() - 1;
+            substitutes->placeholder_index = path.size() + 1;