address comment

diff --git a/include/deal.II/physics/transformations.h b/include/deal.II/physics/transformations.h
index a8a377b083c48cf9caf85a76cfaaffba4d402f21..90a060b1a5824d3a1b76123b77a0dbefd4c8e024 100644 (file)
--- a/include/deal.II/physics/transformations.h
+++ b/include/deal.II/physics/transformations.h
@@ -330,7 +330,7 @@ namespace Physics
      * @f]
      * where the control surfaces $\partial V_{0}$ and $\partial V_{t}$ with
      * outwards facing normals $\mathbf{N}$ and $\mathbf{n}$ are bounded by
-     * the curves $\partial A_{0}$ and $\partial A_{0}$ that are,
+     * the curves $\partial A_{0}$ and $\partial A_{t}$ that are,
      * respectively, associated with the line directors $\mathbf{L}$ and
      * $\mathbf{l}$.
      *