diff --git a/dune/upscaling/SteadyStateUpscalerImplicit.hpp b/dune/upscaling/SteadyStateUpscalerImplicit.hpp
index 18ededa..cce128b 100644
--- a/dune/upscaling/SteadyStateUpscalerImplicit.hpp
+++ b/dune/upscaling/SteadyStateUpscalerImplicit.hpp
@@ -114,6 +114,7 @@ namespace Dune
 
         // ------- Data members -------
         std::vector<double> last_saturation_state_;
+        bool use_gravity_;
         bool output_vtk_;
         bool output_ecl_;
         bool print_inoutflows_;
diff --git a/dune/upscaling/SteadyStateUpscalerImplicit_impl.hpp b/dune/upscaling/SteadyStateUpscalerImplicit_impl.hpp
index 4c70f12..10e01d8 100644
--- a/dune/upscaling/SteadyStateUpscalerImplicit_impl.hpp
+++ b/dune/upscaling/SteadyStateUpscalerImplicit_impl.hpp
@@ -77,7 +77,7 @@ namespace Dune
     inline void SteadyStateUpscalerImplicit<Traits>::initImpl(const Opm::parameter::ParameterGroup& param)
     {
         Super::initImpl(param);
-        use_gravity_ = param.getDefault("output_vtk", use_gravity_);
+        use_gravity_ = param.getDefault("use_gravity", use_gravity_);
         output_vtk_ = param.getDefault("output_vtk", output_vtk_);
         output_ecl_ = param.getDefault("output_ecl", output_ecl_);
         if (output_ecl_) {
@@ -157,8 +157,8 @@ namespace Dune
 	Opm::SparseVector<double> injection(num_cells);
         // Gravity.
         FieldVector<double, 3> gravity(0.0);
-        if(use_gravity_){
-            gravity[2] = -Opm::unit::gravity;
+        if (use_gravity_) {
+            gravity[2] = Opm::unit::gravity;
         }
         
         if (gravity.two_norm() > 0.0) {
diff --git a/dune/upscaling/SteadyStateUpscaler_impl.hpp b/dune/upscaling/SteadyStateUpscaler_impl.hpp
index ee346d4..1dc9b4e 100644
--- a/dune/upscaling/SteadyStateUpscaler_impl.hpp
+++ b/dune/upscaling/SteadyStateUpscaler_impl.hpp
@@ -143,8 +143,8 @@ namespace Dune
 	Opm::SparseVector<double> injection(num_cells);
 	// Gravity.
 	FieldVector<double, 3> gravity(0.0);
-        if(use_gravity_){
-	  gravity[2] = -Opm::unit::gravity;
+        if (use_gravity_) {
+            gravity[2] = Opm::unit::gravity;
         }
 	if (gravity.two_norm() > 0.0) {
 	    MESSAGE("Warning: Gravity is experimental for flow solver.");