diff --git a/dune/solvers/norms/energynorm.hh b/dune/solvers/norms/energynorm.hh
index 319e2219e3c2065200169a82d33639b11947ea55..7c8f1521d3d1829f589756e7028d940bd1fa5ed0 100644
--- a/dune/solvers/norms/energynorm.hh
+++ b/dune/solvers/norms/energynorm.hh
@@ -15,7 +15,7 @@
      * know the matrix in advance. This is, for example, the case
      * for the coarse level matrices constructed by a multilevel solver.
      *
-     * Be carefull: This matrix is not the one representing the preconditioner
+     * Be careful: This matrix is not the one representing the preconditioner
      * induced by the LinearIterationStep.
      *
      *  \todo Elaborate documentation.