diff --git a/exercises/solution/exercise-fluidsystem/2pproblem.hh b/exercises/solution/exercise-fluidsystem/2pproblem.hh
index edca7d6c449eb49b02d7bd1f7637e269d57c8bc2..6bde8dd4d46c60daf1b0253745c6b3f27a16aaa5 100644
--- a/exercises/solution/exercise-fluidsystem/2pproblem.hh
+++ b/exercises/solution/exercise-fluidsystem/2pproblem.hh
@@ -129,6 +129,7 @@ public:
      *        boundary segment.
      *
      * \param globalPos The position of the integration point of the boundary segment.
+     *
      * For this method, the \a values parameter stores the mass flux
      * in normal direction of each phase. Negative values mean influx.
      */