diff --git a/test/boxmodels/1p2c/tissue_tumor_problem.hh b/test/boxmodels/1p2c/tissue_tumor_problem.hh
index 7e10b5878eeb7fb700b42c37e8a1278559e3634b..23b773e89371a115aec78bdc19136e0656353487 100644
--- a/test/boxmodels/1p2c/tissue_tumor_problem.hh
+++ b/test/boxmodels/1p2c/tissue_tumor_problem.hh
@@ -118,6 +118,9 @@ SET_BOOL_PROP(TissueTumorProblem, EnableGravity, false);
  *
  * The pressure field of the tumour is generated by an additional source term of 1.98 e-9 l/h,
  * that is set in the center of the tumour region.
+ *
+ * To run the simulation execute the following line in shell:
+ * <tt>./test_1p2c grids/test_1p2c.dgf 1 1</tt>
  */
 
 template <class TypeTag = TTAG(TissueTumorProblem) >
diff --git a/test/boxmodels/2p2c/injectionproblem.hh b/test/boxmodels/2p2c/injectionproblem.hh
index 1934c09574b6e62abd20a3b5da0c236d6732f71b..c56f53b3cff4304bf4446d45e0f2bc247a887357 100644
--- a/test/boxmodels/2p2c/injectionproblem.hh
+++ b/test/boxmodels/2p2c/injectionproblem.hh
@@ -110,6 +110,9 @@ SET_BOOL_PROP(InjectionProblem, EnablePartialReassemble, true);
  * (\f$ 5m<y<15m\f$) and migrates upwards due to buoyancy. It accumulates and
  * partially enters the lower permeable aquitard.
  * This problem uses the \ref TwoPTwoCModel.
+ *
+ * To run the simulation execute the following line in shell:
+ * <tt>./test_2p2c grids/test_2p2c.dgf 1e6 1e4 </tt>
  */
 template <class TypeTag = TTAG(InjectionProblem) >
 class InjectionProblem : public TwoPTwoCProblem<TypeTag>