diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index f81681a..87298fc 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -829,7 +829,7 @@ bool checkRangeRead(Node *n, const std::span<const uint8_t> begin,
     return false;
   }
 
-  Arena arena;
+  Arena arena{10 << 10};
   auto searchPath = getSearchPath(arena, left.n);
 
   for (auto *iter = nextPhysical(left.n, searchPath); iter != right.n;) {