diff --git a/dumux/discretization/staggered/elementfacevariables.hh b/dumux/discretization/staggered/elementfacevariables.hh
index c4aec037e1697d8a8a25ba4e2ea28e169382faa1..496ffc2ecbf6754da8dd323950ba004199a67075 100644
--- a/dumux/discretization/staggered/elementfacevariables.hh
+++ b/dumux/discretization/staggered/elementfacevariables.hh
@@ -169,7 +169,7 @@ public:
 
 private:
 
-    const int getLocalIdx_(const int scvfIdx) const
+    int getLocalIdx_(const int scvfIdx) const
     {
         auto it = std::find(faceVarIndices_.begin(), faceVarIndices_.end(), scvfIdx);
         assert(it != faceVarIndices_.end() && "Could not find the current face variables for scvfIdx!");
diff --git a/dumux/discretization/staggered/elementvolumevariables.hh b/dumux/discretization/staggered/elementvolumevariables.hh
index 20cf881b72358c6a9fbc9da0147f30727afefee3..cba46de3b7908942baeaa63edf096ced822ec4cb 100644
--- a/dumux/discretization/staggered/elementvolumevariables.hh
+++ b/dumux/discretization/staggered/elementvolumevariables.hh
@@ -253,7 +253,7 @@ public:
 private:
     const GridVolumeVariables* gridVolVarsPtr_;
 
-    const int getLocalIdx_(const int volVarIdx) const
+    int getLocalIdx_(const int volVarIdx) const
     {
         auto it = std::find(volVarIndices_.begin(), volVarIndices_.end(), volVarIdx);
         assert(it != volVarIndices_.end() && "Could not find the current volume variables for volVarIdx!");
diff --git a/dumux/io/vtkoutputmodule.hh b/dumux/io/vtkoutputmodule.hh
index 4c6b375593587b587e7361567d5fc1a9ac3d0f5e..36e9840c0b5924efbc1adf4964414bf0eb5595cd 100644
--- a/dumux/io/vtkoutputmodule.hh
+++ b/dumux/io/vtkoutputmodule.hh
@@ -241,9 +241,9 @@ protected:
     const GridVariables& gridVariables() const { return gridVariables_; }
     const SolutionVector& sol() const { return sol_; }
 
-    const bool verbose() const { return verbose_; }
+    bool verbose() const { return verbose_; }
     const std::string& name() const { return name_; }
-    const Dune::VTK::DataMode dataMode() const { return dm_; }
+    Dune::VTK::DataMode dataMode() const { return dm_; }
 
     Dune::VTKWriter<GridView>& writer() { return *writer_; }
     Dune::VTKSequenceWriter<GridView>& sequenceWriter() { return sequenceWriter_; }