# MutantHub mutant #4095: Return value mutation at validation.cpp:3920
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:3920-3920
# Review: APPROVED; outcome: KILLED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -3920,1 +3920,1 @@
-    if (block.m_checked_merkle_root) return true;
+    if (block.m_checked_merkle_root) return false;