diff --git a/dune/solvers/common/genericvectortools.hh b/dune/solvers/common/genericvectortools.hh
index 049ccedd4c4b1cc34b1d72f518b42f64238caaf0..c4bb6df2a14911fe0ced7f4b74754868c5abb49f 100644
--- a/dune/solvers/common/genericvectortools.hh
+++ b/dune/solvers/common/genericvectortools.hh
@@ -139,7 +139,7 @@ struct GenericVector
 
     /** \brief weave two vector blocks into each other e.g. [[u1...un][w1...wn]] --> [[u1 w1]...[un wn]]
      *
-     * interlace: \f$\left((R^k)^m\right)^n\longrightarrow(R^k\cdot n)^m\f$, i.e. for example
+     * interlace: \f$\left((\mathbb R^k)^m\right)^n\longrightarrow(\mathbb R^k\cdot n)^m\f$, i.e. for example
      *
      * \f[
      *   \begin{pmatrix}