diff --git a/src/TNL/Solvers/ODE/ExplicitSolver_impl.h b/src/TNL/Solvers/ODE/ExplicitSolver_impl.h
index 04748c5889c8f6605093824254d12e297743c3cc..279b1ae8fe1148a07b99c2acc63262b8926ccfdb 100644
--- a/src/TNL/Solvers/ODE/ExplicitSolver_impl.h
+++ b/src/TNL/Solvers/ODE/ExplicitSolver_impl.h
@@ -43,7 +43,7 @@ ExplicitSolver< Problem >::
 setup( const Config::ParameterContainer& parameters,
        const String& prefix )
 {
-   this->setVerbose( parameters.getParameter< bool >( "verbose" ) );
+   this->setVerbose( parameters.getParameter< int >( "verbose" ) );
    return IterativeSolver< typename Problem::RealType, typename Problem::IndexType >::setup( parameters, prefix );
 }