diff --git a/dune/istl/umfpack.hh b/dune/istl/umfpack.hh
index 639111c89e75f58b75c294bd1e976863f6967010..2fc30e06dac997b8189c40df09d096d0760fbf64 100644
--- a/dune/istl/umfpack.hh
+++ b/dune/istl/umfpack.hh
@@ -209,7 +209,7 @@ namespace Dune {
      * This computes the matrix decomposition, and may take a long time
      * (and use a lot of memory).
      *
-     *  @param mat_ the matrix to solve for
+     *  @param matrix the matrix to solve for
      *  @param verbose [0..2] set the verbosity level, defaults to 0
      */
     UMFPack(const Matrix& matrix, int verbose=0) : matrixIsLoaded_(false)
@@ -227,7 +227,7 @@ namespace Dune {
      * This computes the matrix decomposition, and may take a long time
      * (and use a lot of memory).
      *
-     * @param mat_ the matrix to solve for
+     * @param matrix the matrix to solve for
      * @param verbose [0..2] set the verbosity level, defaults to 0
      */
     UMFPack(const Matrix& matrix, int verbose, bool) : matrixIsLoaded_(false)