diff --git a/dune/tectonic/ellipticenergy.hh b/dune/tectonic/ellipticenergy.hh
index 2fd259f8977a4210a8a1bacc3de6810df9585327..d16292b1fdf6c29fb9d49657e3c8e677b6079bdf 100644
--- a/dune/tectonic/ellipticenergy.hh
+++ b/dune/tectonic/ellipticenergy.hh
@@ -10,11 +10,10 @@
 
 #include "localfriction.hh"
 
-namespace Dune {
 template <size_t dim> class EllipticEnergy {
 public:
-  using SmallVector = FieldVector<double, dim>;
-  using SmallMatrix = FieldMatrix<double, dim, dim>;
+  using SmallVector = Dune::FieldVector<double, dim>;
+  using SmallMatrix = Dune::FieldMatrix<double, dim, dim>;
 
   using Nonlinearity = LocalFriction<dim>;
 
@@ -44,5 +43,4 @@ template <size_t dim> class EllipticEnergy {
         y[i] = 0;
   }
 };
-}
 #endif
diff --git a/dune/tectonic/frictionpotential.hh b/dune/tectonic/frictionpotential.hh
index 488ac5baca6fdadc24d73e63ac7399142216ed28..2fc1864be5699c483d7f1b3595b2038a349b6c72 100644
--- a/dune/tectonic/frictionpotential.hh
+++ b/dune/tectonic/frictionpotential.hh
@@ -11,7 +11,6 @@
 
 #include "frictiondata.hh"
 
-namespace Dune {
 class FrictionPotentialWrapper {
 public:
   virtual ~FrictionPotentialWrapper() {}
@@ -21,7 +20,7 @@ class FrictionPotentialWrapper {
   double virtual regularity(double s) const = 0;
 
   double virtual evaluate(double x) const {
-    DUNE_THROW(NotImplemented, "evaluation not implemented");
+    DUNE_THROW(Dune::NotImplemented, "evaluation not implemented");
   }
 
   void virtual updateLogState(double) = 0;
@@ -92,5 +91,4 @@ class TrivialFunction : public FrictionPotentialWrapper {
 
   void updateLogState(double) {}
 };
-}
 #endif
diff --git a/dune/tectonic/globalnonlinearity.hh b/dune/tectonic/globalnonlinearity.hh
index 8b1054cc6f6bb6f0bf38611ab19b3cdacc9327b5..c5663187141b80c643c95f1ad77381211c2a4716 100644
--- a/dune/tectonic/globalnonlinearity.hh
+++ b/dune/tectonic/globalnonlinearity.hh
@@ -10,10 +10,9 @@
 #include "frictionpotential.hh"
 #include "localfriction.hh"
 
-namespace Dune {
 template <class Matrix, class Vector> class GlobalNonlinearity {
 protected:
-  using ScalarVector = BlockVector<FieldVector<double, 1>>;
+  using ScalarVector = Dune::BlockVector<Dune::FieldVector<double, 1>>;
 
 public:
   using IndexSet = Dune::MatrixIndexSet;
@@ -83,5 +82,4 @@ template <class Matrix, class Vector> class GlobalNonlinearity {
 
   virtual void updateLogState(ScalarVector const &logState) = 0;
 };
-}
 #endif
diff --git a/dune/tectonic/globalruinanonlinearity.hh b/dune/tectonic/globalruinanonlinearity.hh
index ec44344357f49c390008ca1033ee34c0be6dfd11..85d297e737b8848224a7296612744d044fd828bf 100644
--- a/dune/tectonic/globalruinanonlinearity.hh
+++ b/dune/tectonic/globalruinanonlinearity.hh
@@ -14,7 +14,6 @@
 #include "localfriction.hh"
 #include "frictionpotential.hh"
 
-namespace Dune {
 template <class Matrix, class Vector>
 class GlobalRuinaNonlinearity : public GlobalNonlinearity<Matrix, Vector> {
 public:
@@ -55,5 +54,4 @@ class GlobalRuinaNonlinearity : public GlobalNonlinearity<Matrix, Vector> {
 private:
   std::vector<std::shared_ptr<Friction>> restrictions;
 };
-}
 #endif
diff --git a/dune/tectonic/localfriction.hh b/dune/tectonic/localfriction.hh
index 2dfc1ebf6260306ddff40ad33831f6d301db1d51..c6c8900aaa5ea0b33f67e3f5f7e272bd71ecb86c 100644
--- a/dune/tectonic/localfriction.hh
+++ b/dune/tectonic/localfriction.hh
@@ -29,11 +29,10 @@ double dotFirstNormalised(Vector const &x, Vector const &y) {
   return sum;
 }
 
-namespace Dune {
 template <size_t dimension> class LocalFriction {
 public:
-  using VectorType = FieldVector<double, dimension>;
-  using MatrixType = FieldMatrix<double, dimension, dimension>;
+  using VectorType = Dune::FieldVector<double, dimension>;
+  using MatrixType = Dune::FieldMatrix<double, dimension, dimension>;
 
   explicit LocalFriction(std::shared_ptr<FrictionPotentialWrapper> func)
       : func(func) {}
@@ -123,5 +122,4 @@ template <size_t dimension> class LocalFriction {
 private:
   std::shared_ptr<FrictionPotentialWrapper> const func;
 };
-}
 #endif
diff --git a/dune/tectonic/minimisation.hh b/dune/tectonic/minimisation.hh
index f63f0aff011d6110ce0c425b13df473a9fa65b95..09ec89de510364c6f1db0d868032223102366a4d 100644
--- a/dune/tectonic/minimisation.hh
+++ b/dune/tectonic/minimisation.hh
@@ -11,7 +11,6 @@
 
 #include "mydirectionalconvexfunction.hh"
 
-namespace Dune {
 template <class Functional>
 void descentMinimisation(Functional const &J,
                          typename Functional::SmallVector &x,
@@ -47,5 +46,4 @@ void minimise(Functional const &J, typename Functional::SmallVector &x,
     descentMinimisation(J, x, v, bisection);
   }
 }
-}
 #endif
diff --git a/dune/tectonic/myblockproblem.hh b/dune/tectonic/myblockproblem.hh
index 4601c7c2a8cb9d26a053c0e1ac4f2002edf07ea7..735afc905c29ddf7ea37efc65a710f8862cdb31a 100644
--- a/dune/tectonic/myblockproblem.hh
+++ b/dune/tectonic/myblockproblem.hh
@@ -21,7 +21,7 @@
 /* Just for debugging */
 template <class Matrix, class Vector>
 double computeEnergy(Matrix const &A, Vector const &x, Vector const &b,
-                     Dune::GlobalNonlinearity<Matrix, Vector> const &phi) {
+                     GlobalNonlinearity<Matrix, Vector> const &phi) {
   return computeEnergy(A, x, b) + phi(x);
 }
 
@@ -95,7 +95,7 @@ template <class ConvexProblem> class MyBlockProblem {
     v /= vnorm; // Rescale for numerical stability
 
     MyDirectionalConvexFunction<
-        Dune::GlobalNonlinearity<MatrixType, VectorType>> const
+        GlobalNonlinearity<MatrixType, VectorType>> const
     psi(computeDirectionalA(problem.A, v),
         computeDirectionalb(problem.A, problem.f, u, v), problem.phi, u, v);
 
@@ -253,8 +253,8 @@ class MyBlockProblem<ConvexProblem>::IterateObject {
       assert(localA != nullptr);
 
       auto const phi = problem.phi.restriction(m);
-      Dune::EllipticEnergy<block_size> localJ(*localA, localb, phi, ignore);
-      Dune::minimise(localJ, ui, localsteps, bisection);
+      EllipticEnergy<block_size> localJ(*localA, localb, phi, ignore);
+      minimise(localJ, ui, localsteps, bisection);
     }
   }
 
diff --git a/src/assemblers.cc b/src/assemblers.cc
index 160169fda8fc9fb4f676b87e64cf1137d8de3514..33739527aa076be35fe60b8a1ff6dba87ef101e2 100644
--- a/src/assemblers.cc
+++ b/src/assemblers.cc
@@ -91,7 +91,7 @@ void MyAssembler<GridView, dimension>::assembleNeumann(
 template <class GridView, int dimension>
 auto MyAssembler<GridView, dimension>::assembleFrictionNonlinearity(
     BoundaryPatch<GridView> const &frictionalBoundary, FrictionData const &fd)
-    -> std::shared_ptr<Dune::GlobalNonlinearity<Matrix, Vector>> {
+    -> std::shared_ptr<GlobalNonlinearity<Matrix, Vector>> {
   // Lump negative normal stress (kludge)
   ScalarVector weights;
   {
@@ -107,7 +107,7 @@ auto MyAssembler<GridView, dimension>::assembleFrictionNonlinearity(
 
   Dune::BitSetVector<1> frictionalNodes;
   frictionalBoundary.getVertices(frictionalNodes);
-  return std::make_shared<Dune::GlobalRuinaNonlinearity<Matrix, Vector>>(
+  return std::make_shared<GlobalRuinaNonlinearity<Matrix, Vector>>(
       frictionalNodes, weights, fd);
 }
 
diff --git a/src/assemblers.hh b/src/assemblers.hh
index a7e0721fac2601e2b882f3825858b0d872704940..04e04287c777799a8747eb5c48cf812a25f4ca89 100644
--- a/src/assemblers.hh
+++ b/src/assemblers.hh
@@ -52,7 +52,7 @@ template <class GridView, int dimension> class MyAssembler {
                        Dune::VirtualFunction<double, double> const &neumann,
                        double relativeTime);
 
-  std::shared_ptr<Dune::GlobalNonlinearity<Matrix, Vector>>
+  std::shared_ptr<GlobalNonlinearity<Matrix, Vector>>
   assembleFrictionNonlinearity(
       BoundaryPatch<GridView> const &frictionalBoundary,
       FrictionData const &fd);
diff --git a/src/one-body-sample.cc b/src/one-body-sample.cc
index 472f44c0f93f5f5536bd72fba18429ed57b0965a..8bcca4f8bcbfd7afaffe9a31cf1168085c858e1d 100644
--- a/src/one-body-sample.cc
+++ b/src/one-body-sample.cc
@@ -151,7 +151,7 @@ int main(int argc, char *argv[]) {
     using ScalarMatrix = Dune::BCRSMatrix<SmallScalarMatrix>;
     using Vector = Dune::BlockVector<SmallVector>;
     using ScalarVector = Dune::BlockVector<Dune::FieldVector<double, 1>>;
-    using Nonlinearity = Dune::GlobalNonlinearity<Matrix, Vector>;
+    using Nonlinearity = GlobalNonlinearity<Matrix, Vector>;
 
     auto const E = parset.get<double>("body.E");
     auto const nu = parset.get<double>("body.nu");
@@ -391,10 +391,10 @@ int main(int argc, char *argv[]) {
     writer.writeInfo(alpha_initial, u_initial, v_initial);
 
     // Set up TNNMG solver
-    using NonlinearFactory = SolverFactory<
-        dims, MyBlockProblem<ConvexProblem<
-                  Dune::GlobalNonlinearity<Matrix, Vector>, Matrix>>,
-        Grid>;
+    using NonlinearFactory =
+        SolverFactory<dims, MyBlockProblem<ConvexProblem<
+                                GlobalNonlinearity<Matrix, Vector>, Matrix>>,
+                      Grid>;
     NonlinearFactory factory(parset.sub("solver.tnnmg"), refinements, *grid,
                              velocityDirichletNodes);
     auto multigridStep = factory.getSolver();
diff --git a/src/solverfactory_tmpl.cc b/src/solverfactory_tmpl.cc
index 7f394c0108de75b6450a4afbc4ec6e7f6324da97..0dc6e9dd7e0964f700ecf401406a99749ebd1578 100644
--- a/src/solverfactory_tmpl.cc
+++ b/src/solverfactory_tmpl.cc
@@ -13,8 +13,8 @@
 #include <dune/tectonic/myblockproblem.hh>
 
 template class SolverFactory<
-    DIM, MyBlockProblem<
-             ConvexProblem<Dune::GlobalNonlinearity<Matrix, Vector>, Matrix>>,
+    DIM,
+    MyBlockProblem<ConvexProblem<GlobalNonlinearity<Matrix, Vector>, Matrix>>,
     Grid>;
 template class SolverFactory<
     DIM, BlockNonlinearTNNMGProblem<