diff --git a/ebos/eclgenerictracermodel.hh b/ebos/eclgenerictracermodel.hh
index e22701e00f..8cf339c4e3 100644
--- a/ebos/eclgenerictracermodel.hh
+++ b/ebos/eclgenerictracermodel.hh
@@ -117,7 +117,6 @@ protected:
     std::vector<int> tracerPhaseIdx_;
     std::vector<Dune::BlockVector<Dune::FieldVector<Scalar, 1>>> tracerConcentration_;
     std::unique_ptr<TracerMatrix> tracerMatrix_;
-    std::vector<int> cartToGlobal_;
     std::vector<Dune::BlockVector<Dune::FieldVector<Scalar, 1>>> storageOfTimeIndex1_;
 
     // <wellName, tracerIdx> -> wellRate
diff --git a/ebos/eclgenerictracermodel_impl.hh b/ebos/eclgenerictracermodel_impl.hh
index 29f050f503..16a1441c79 100644
--- a/ebos/eclgenerictracermodel_impl.hh
+++ b/ebos/eclgenerictracermodel_impl.hh
@@ -253,13 +253,6 @@ doInit(bool rst, std::size_t numGridDof,
             tracerMatrix_->addindex(dofIdx, *nIt);
     }
     tracerMatrix_->endindices();
-
-    const int sizeCartGrid = cartMapper_.cartesianSize();
-    cartToGlobal_.resize(sizeCartGrid);
-    for (unsigned i = 0; i < numGridDof; ++i) {
-        int cartIdx = cartMapper_.cartesianIndex(i);
-        cartToGlobal_[cartIdx] = i;
-    }
 }
 
 template<class Grid,class GridView, class DofMapper, class Stencil, class Scalar>