1 files changed, 1 insertions, 3 deletions
diff --git a/Source/WarpX.cpp b/Source/WarpX.cpp
index 72adbe889..17a47caaa 100644
--- a/Source/WarpX.cpp
+++ b/Source/WarpX.cpp
@@ -1062,9 +1062,7 @@ WarpX::AllocLevelMFs (int lev, const BoxArray& ba, const DistributionMapping& dm
 
     if (load_balance_intervals.isActivated())
     {
-        costs[lev].reset(new amrex::Vector<Real>);
-        const int nboxes = Efield_fp[lev][0].get()->size();
-        costs[lev]->resize(nboxes);
+        costs[lev].reset(new amrex::LayoutData<Real>(ba, dm));
     }
 }