# MutantHub mutant #1338: Constant replacement mutation at interpreter.cpp:720
# Repository: bitcoin/bitcoin @ 05e49b342faa1412266951429c135e9f5daa30c2
# File: src/script/interpreter.cpp:720-720
# Review: APPROVED; outcome: KILLED
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -720,1 +720,1 @@
-                    valtype vch1 = stacktop(-2);
+                    valtype vch1 = stacktop(-2 + 1);