# MutantHub mutant #4018: Return value mutation at validation.cpp:2056
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:2056-2056
# Review: APPROVED; outcome: SURVIVED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2056,1 +2056,1 @@
-    if (tx.IsCoinBase()) return true;
+    if (tx.IsCoinBase()) return false;