diff --git a/dune/gfe/parallel/globalindex.hh b/dune/gfe/parallel/globalindex.hh
index aebb05ec2983023679c5028219ac516add7d7b74..38ebb47b94f3bd214415c70aa469988182f7c6d1 100644
--- a/dune/gfe/parallel/globalindex.hh
+++ b/dune/gfe/parallel/globalindex.hh
@@ -66,6 +66,9 @@
 /* of a given codim in a given GridView, assuming they all have the same geometry,           */
 /* i.e. codim, type                                                                          */
 /*********************************************************************************************/
+
+namespace Dune {
+
 template<class GridView, int CODIM>
 class GlobalUniqueIndex
 {
@@ -346,4 +349,6 @@ protected:
   IndexMap globalLocalMap_;
 };
 
+}  // namespace Dune
+
 #endif /* GLOBALUNIQUEINDEX_HH_ */
diff --git a/dune/gfe/riemanniantrsolver.cc b/dune/gfe/riemanniantrsolver.cc
index 2ab1da2be6666d31eb60a48fc701a04c077db62b..435bfccec51cb0c71bae76405de03b245c928a7a 100644
--- a/dune/gfe/riemanniantrsolver.cc
+++ b/dune/gfe/riemanniantrsolver.cc
@@ -181,7 +181,7 @@ setup(const GridType& grid,
 
         // If we are on more than 1 processors, join all local transfer matrices on rank 0,
         // and construct a single global transfer operator there.
-        typedef GlobalUniqueIndex<typename GridType::LeafGridView, gridDim> LeafP1GUIndex;
+        typedef Dune::GlobalUniqueIndex<typename GridType::LeafGridView, gridDim> LeafP1GUIndex;
         LeafP1GUIndex p1Index(grid_->leafGridView());
 
         typedef typename TruncatedCompressedMGTransfer<CorrectionType>::TransferOperatorType TransferOperatorType;
@@ -198,7 +198,7 @@ setup(const GridType& grid,
 
           // If we are on more than 1 processors, join all local transfer matrices on rank 0,
           // and construct a single global transfer operator there.
-          typedef GlobalUniqueIndex<typename GridType::LevelGridView, gridDim> LevelGUIndex;
+          typedef Dune::GlobalUniqueIndex<typename GridType::LevelGridView, gridDim> LevelGUIndex;
           LevelGUIndex fineGUIndex(grid_->levelGridView(i+2));
           LevelGUIndex coarseGUIndex(grid_->levelGridView(i+1));
 
@@ -221,7 +221,7 @@ setup(const GridType& grid,
 
         // If we are on more than 1 processors, join all local transfer matrices on rank 0,
         // and construct a single global transfer operator there.
-        typedef GlobalUniqueIndex<typename GridType::LevelGridView, gridDim> LevelGUIndex;
+        typedef Dune::GlobalUniqueIndex<typename GridType::LevelGridView, gridDim> LevelGUIndex;
         LevelGUIndex fineGUIndex(grid_->levelGridView(i+1));
         LevelGUIndex coarseGUIndex(grid_->levelGridView(i));