diff --git a/runtime/vm/object_graph_copy.cc b/runtime/vm/object_graph_copy.cc
index 03f24ba..f2cf88e 100644
--- a/runtime/vm/object_graph_copy.cc
+++ b/runtime/vm/object_graph_copy.cc
@@ -259,7 +259,7 @@
 #else
   const bool compressed = false;
 #endif
-  return Object::Allocate(cid, size, Heap::kNew, compressed);
+  return Object::Allocate(cid, size, Heap::kOld, compressed);
 }
 
 DART_FORCE_INLINE