diff --git a/dune/solvers/common/numproc.hh b/dune/solvers/common/numproc.hh
index 890edf68793cc5f150e85254202c493d16fad878..ab38666d590b87d203ba858ee6877beec1cb5e95 100644
--- a/dune/solvers/common/numproc.hh
+++ b/dune/solvers/common/numproc.hh
@@ -5,9 +5,6 @@
 
 #include <dune/common/exceptions.hh>
 
-namespace Dune {
-namespace Solvers {
-
 /** \brief Exception thrown by solvers */
 class SolverError : public Dune::Exception {};
 
@@ -51,11 +48,5 @@ class SolverError : public Dune::Exception {};
         return lhs;
     }
 
-} /* namespace Solvers */
-} /* namespace Dune */
-
-// For backward compatibility: will be removed eventually
-using Dune::Solvers::SolverError;
-using Dune::Solvers::NumProc;
 
 #endif