# MutantHub mutant #3814: Arithmetic operator mutation at blockstorage.cpp:364
# Repository: bitcoin/bitcoin @ 4fe28722a572793da7614734a0c9cc8e1adc751a
# File: src/node/blockstorage.cpp:364-364
# Review: APPROVED; outcome: SURVIVED
--- a/src/node/blockstorage.cpp
+++ b/src/node/blockstorage.cpp
@@ -364,1 +364,1 @@
-    uint64_t nBuffer = BLOCKFILE_CHUNK_SIZE + UNDOFILE_CHUNK_SIZE;
+    uint64_t nBuffer = BLOCKFILE_CHUNK_SIZE - UNDOFILE_CHUNK_SIZE;