diff --git a/src/implementation/schemes/euler/fvm/tnlLaxFridrichs_impl.h b/src/implementation/schemes/euler/fvm/tnlLaxFridrichs_impl.h
index dcbd6dad28354ab80e4dff2e7761337038195933..352924c31a91e4889209bf72f1612d7dc20c4d36 100644
--- a/src/implementation/schemes/euler/fvm/tnlLaxFridrichs_impl.h
+++ b/src/implementation/schemes/euler/fvm/tnlLaxFridrichs_impl.h
@@ -33,6 +33,19 @@ tnlLaxFridrichs< tnlGrid< 2, Real, Device, Index, GridGeometry >,
 {
 }
 
+template< typename Real,
+          typename Device,
+          typename Index,
+          typename PressureGradient,
+          template< int, typename, typename, typename > class GridGeometry >
+tnlString tnlLaxFridrichs< tnlGrid< 2, Real, Device, Index, GridGeometry >,
+                           PressureGradient > :: getTypeStatic()
+{
+   return tnlString( "tnlLaxFridrichs< " ) +
+          tnlGrid< 2, Real, Device, Index, GridGeometry > :: getTypeStatic() + ", " +
+          PressureGradient :: getTypeStatic() + " >";
+}
+
 template< typename Real,
           typename Device,
           typename Index,
@@ -116,9 +129,9 @@ template< typename Real,
           typename PressureGradient,
           template< int, typename, typename, typename > class GridGeometry >
 void tnlLaxFridrichs< tnlGrid< 2, Real, Device, Index, GridGeometry >, PressureGradient  > :: getExplicitRhs( const IndexType centralVolume,
-                                                                                                RealType& rho_t,
-                                                                                                RealType& rho_u1_t,
-                                                                                                RealType& rho_u2_t ) const
+                                                                                                              RealType& rho_t,
+                                                                                                              RealType& rho_u1_t,
+                                                                                                              RealType& rho_u2_t ) const
 {
    tnlAssert( mesh, cerr << "No mesh has been binded with the Lax-Fridrichs scheme." );
    tnlAssert( pressureGradient, cerr << "No pressure gradient was set in the the Lax-Fridrichs scheme." )
diff --git a/src/schemes/euler/fvm/tnlLaxFridrichs.h b/src/schemes/euler/fvm/tnlLaxFridrichs.h
index 70642b94efa7954ef3a6827885c4b2e92ca902d9..381ce8e6c3218e2f62458f0f4276c26ced4728fb 100644
--- a/src/schemes/euler/fvm/tnlLaxFridrichs.h
+++ b/src/schemes/euler/fvm/tnlLaxFridrichs.h
@@ -23,8 +23,8 @@
 #include <mesh/tnlIdenticalGridGeometry.h>
 #include <schemes/gradient/tnlCentralFDMGradient.h>
 
-template< typename MeshType,
-          typename PressureGradient = tnlCentralFDMGradient >
+template< typename Mesh,
+          typename PressureGradient = tnlCentralFDMGradient< Mesh > >
 class tnlLaxFridrichs
 {
 };
@@ -47,6 +47,8 @@ class tnlLaxFridrichs< tnlGrid< 2, Real, Device, Index, GridGeometry >, Pressure
 
    tnlLaxFridrichs();
 
+   static tnlString getTypeStatic();
+
    void getExplicitRhs( const IndexType centralVolume,
                         RealType& rho_t,
                         RealType& rho_u1_t,