diff --git a/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.cpp b/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.cpp
index c081f20d4c..d4485812b9 100644
--- a/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.cpp
+++ b/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.cpp
@@ -124,6 +124,12 @@ FlowSolverBase::FlowSolverBase( string const & name,
     setApplyDefaultValue( 0.1 ).
     setDescription( "Maximum (absolute) temperature change in a sequential iteration, used for outer loop convergence check" );
 
+  this->registerWrapper( "testingTheLogs", m_testLog ).
+    setSizedFromParent( 0 ).
+    setApplyDefaultValue( "Testing" ).
+    setInputFlag( InputFlags::OPTIONAL ).
+    setDescription( "Testing logs parsing and diff filtering." );
+
   // allow the user to select a norm
   getNonlinearSolverParameters().getWrapper< physicsSolverBaseKernels::NormType >( NonlinearSolverParameters::viewKeysStruct::normTypeString() ).setInputFlag( InputFlags::OPTIONAL );
 }
diff --git a/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.hpp b/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.hpp
index 4352e05940..81c011ffa1 100644
--- a/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.hpp
+++ b/src/coreComponents/physicsSolvers/fluidFlow/FlowSolverBase.hpp
@@ -254,6 +254,9 @@ class FlowSolverBase : public PhysicsSolverBase
   real64 m_sequentialTempChange;
   real64 m_maxSequentialTempChange;
 
+  // MATTEO: testing logs parsing
+  string m_testLog;
+
   /**
    * @brief Class used for displaying boundary warning message
    */