diff --git a/dune/gfe/riemanniantrsolver.cc b/dune/gfe/riemanniantrsolver.cc
index 9cf78717d78682f97a4efd3bae2dd459996842fb..95987a1c1d76990bb015cd702bc2e2864ae01804 100644
--- a/dune/gfe/riemanniantrsolver.cc
+++ b/dune/gfe/riemanniantrsolver.cc
@@ -65,7 +65,7 @@ setup(const GridType& grid,
     //////////////////////////////////////////////////////////////////
 
 #if HAVE_MPI
-    globalMapper_ = std::unique_ptr<GlobalMapper>(new GlobalMapper(grid_->leafGridView()));
+    globalMapper_ = std::make_unique<GlobalMapper>(grid_->leafGridView());
 #endif
 
     // ////////////////////////////////