# MutantHub mutant #1870: Logical operator mutation at script.cpp:168
# Repository: bitcoin/bitcoin @ 859215218667ca9f35d5adae0289e4a125798087
# File: src/script/script.cpp:168-168
# Review: APPROVED; outcome: KILLED
--- a/src/script/script.cpp
+++ b/src/script/script.cpp
@@ -168,1 +168,1 @@
-        if (opcode == OP_CHECKSIG || opcode == OP_CHECKSIGVERIFY)
+        if (opcode == OP_CHECKSIG && opcode == OP_CHECKSIGVERIFY)