diff --git a/opm/simulators/SimulatorCompressibleTwophase.cpp b/opm/simulators/SimulatorCompressibleTwophase.cpp
index 52eb3e44b..d0422edcf 100644
--- a/opm/simulators/SimulatorCompressibleTwophase.cpp
+++ b/opm/simulators/SimulatorCompressibleTwophase.cpp
@@ -277,7 +277,7 @@ namespace Opm
           src_(src),
           bcs_(bcs),
           gravity_(gravity),
-          psolver_(grid, props, /* rock_comp, */ linsolver,
+          psolver_(grid, props, rock_comp, linsolver,
                    param.getDefault("nl_pressure_residual_tolerance", 0.0),
                    param.getDefault("nl_pressure_change_tolerance", 1.0),
                    param.getDefault("nl_pressure_maxiter", 10),
@@ -476,8 +476,9 @@ namespace Opm
                 std::cout << "Making " << num_transport_substeps_ << " transport substeps." << std::endl;
             }
             for (int tr_substep = 0; tr_substep < num_transport_substeps_; ++tr_substep) {
-                tsolver_.solve(&state.faceflux()[0], &state.pressure()[0], &state.surfacevol()[0],
-                               &porevol[0],  &initial_porevol[0], &transport_src[0], stepsize, state.saturation());
+                tsolver_.solve(&state.faceflux()[0], &state.pressure()[0],
+                               &porevol[0],  &initial_porevol[0], &transport_src[0], stepsize,
+                               state.saturation(), state.surfacevol());
                 Opm::computeInjectedProduced(props_,
                                              state.pressure(), state.surfacevol(), state.saturation(),
                                              transport_src, stepsize, injected, produced);