diff --git a/dune/solvers/solvers/solver.hh b/dune/solvers/solvers/solver.hh
index a5859567ad5e4d141836c195751d218836b03eaf..ce208b56167fbf5eaa590031a07072df6a976499 100644
--- a/dune/solvers/solvers/solver.hh
+++ b/dune/solvers/solvers/solver.hh
@@ -1,5 +1,5 @@
-#ifndef DUNE_SOLVER_HH
-#define DUNE_SOLVER_HH
+#ifndef DUNE_SOLVERS_SOLVER_HH
+#define DUNE_SOLVERS_SOLVER_HH
 
 #include <dune/solvers/common/numproc.hh>