diff --git a/dune/solvers/norms/energynorm.hh b/dune/solvers/norms/energynorm.hh
index 686e60d4dda7407622687641d34bf12044719ab5..c8e819eb0fc985f69e9e1d94a8f15039f6f0e9be 100644
--- a/dune/solvers/norms/energynorm.hh
+++ b/dune/solvers/norms/energynorm.hh
@@ -32,11 +32,11 @@
 
         EnergyNorm(const double tol=1e-10 ) : iterationStep_(NULL), matrix_(NULL), tol_(tol) {}
 
-        EnergyNorm(LinearIterationStep<OperatorType, DiscFuncType>& it, const double tol=1e-10) 
+        EnergyNorm(LinearIterationStep<OperatorType, DiscFuncType>& it, const double tol=1e-10)
             : iterationStep_(&it), matrix_(NULL), tol_(tol)
         {}
 
-        EnergyNorm(const OperatorType& matrix, const double tol=1e-10) 
+        EnergyNorm(const OperatorType& matrix, const double tol=1e-10)
             : iterationStep_(NULL), matrix_(&matrix), tol_(tol)
         {}
 
@@ -59,7 +59,7 @@
         }
 
         //! Compute the norm of the given vector
-        double operator()(const DiscFuncType& f) const 
+        double operator()(const DiscFuncType& f) const
         {
             return std::sqrt(this->EnergyNorm<OperatorType,DiscFuncType>::normSquared(f));
         }
@@ -71,7 +71,7 @@
             if (iterationStep_ == NULL && matrix_ == NULL)
                 DUNE_THROW(Dune::Exception, "You have supplied neither a matrix nor an IterationStep to the EnergyNorm!");
 
-            const OperatorType& A = (iterationStep_) 
+            const OperatorType& A = (iterationStep_)
                 ? *(iterationStep_->getMatrix())
                 : *matrix_;
 
@@ -92,7 +92,7 @@
 
         /** \brief Compute the squared norm for a given vector and matrix
             \todo This could be implemented without the temporary. */
-        static field_type normSquared(const DiscFuncType& u, 
+        static field_type normSquared(const DiscFuncType& u,
                                       const OperatorType& A,
                                       const double tol=1e-10)
         {