# MutantHub mutant #1320: Constant replacement mutation at interpreter.cpp:669
# Repository: bitcoin/bitcoin @ 05e49b342faa1412266951429c135e9f5daa30c2
# File: src/script/interpreter.cpp:669-669
# Review: APPROVED; outcome: KILLED
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -669,1 +669,1 @@
-                    bool fValue = CastToBool(stacktop(-1));
+                    bool fValue = CastToBool(stacktop(-1 - 1));