diff --git a/opm/simulators/utils/ParallelRestart.cpp b/opm/simulators/utils/ParallelRestart.cpp
index 64f29f1ec..ff0505f3f 100644
--- a/opm/simulators/utils/ParallelRestart.cpp
+++ b/opm/simulators/utils/ParallelRestart.cpp
@@ -799,6 +799,21 @@ std::size_t packSize(const OilPvtThermal<Scalar>& data,
 template std::size_t packSize(const OilPvtThermal<double>& data,
                               Dune::MPIHelper::MPICommunicator comm);
 
+template<class Scalar>
+std::size_t packSize(const ConstantCompressibilityWaterPvt<Scalar>& data,
+                     Dune::MPIHelper::MPICommunicator comm)
+{
+    return packSize(data.waterReferenceDensity(), comm) +
+           packSize(data.waterReferencePressure(), comm) +
+           packSize(data.waterReferenceFormationVolumeFactor(), comm) +
+           packSize(data.waterCompressibility(), comm) +
+           packSize(data.waterViscosity(), comm) +
+           packSize(data.waterViscosibility(), comm);
+}
+
+template std::size_t packSize(const ConstantCompressibilityWaterPvt<double>& data,
+                              Dune::MPIHelper::MPICommunicator comm);
+
 ////// pack routines
 
 template<class T>
@@ -1605,6 +1620,23 @@ template void pack(const OilPvtThermal<double>& data,
                    std::vector<char>& buffer, int& position,
                    Dune::MPIHelper::MPICommunicator comm);
 
+template<class Scalar>
+void pack(const ConstantCompressibilityWaterPvt<Scalar>& data,
+          std::vector<char>& buffer, int& position,
+          Dune::MPIHelper::MPICommunicator comm)
+{
+    pack(data.waterReferenceDensity(), buffer, position, comm);
+    pack(data.waterReferencePressure(), buffer, position, comm);
+    pack(data.waterReferenceFormationVolumeFactor(), buffer, position, comm);
+    pack(data.waterCompressibility(), buffer, position, comm);
+    pack(data.waterViscosity(), buffer, position, comm);
+    pack(data.waterViscosibility(), buffer, position, comm);
+}
+
+template void pack(const ConstantCompressibilityWaterPvt<double>& data,
+                   std::vector<char>& buffer, int& position,
+                   Dune::MPIHelper::MPICommunicator comm);
+
 /// unpack routines
 
 template<class T>
@@ -2675,6 +2707,33 @@ template void unpack(OilPvtThermal<double>& data,
                      std::vector<char>& buffer, int& position,
                      Dune::MPIHelper::MPICommunicator comm);
 
+template<class Scalar>
+void unpack(ConstantCompressibilityWaterPvt<Scalar>& data,
+            std::vector<char>& buffer, int& position,
+            Dune::MPIHelper::MPICommunicator comm)
+{
+    std::vector<Scalar> waterReferenceDensity, waterReferencePressure,
+                        waterReferenceFormationVolumeFactor,
+                        waterCompressibility, waterViscosity, waterViscosibility;
+
+    unpack(waterReferenceDensity, buffer, position, comm);
+    unpack(waterReferencePressure, buffer, position, comm);
+    unpack(waterReferenceFormationVolumeFactor, buffer, position, comm);
+    unpack(waterCompressibility, buffer, position, comm);
+    unpack(waterViscosity, buffer, position, comm);
+    unpack(waterViscosibility, buffer, position, comm);
+    data = ConstantCompressibilityWaterPvt<Scalar>(waterReferenceDensity,
+                                                   waterReferencePressure,
+                                                   waterReferenceFormationVolumeFactor,
+                                                   waterCompressibility,
+                                                   waterViscosity,
+                                                   waterViscosibility);
+}
+
+template void unpack(ConstantCompressibilityWaterPvt<double>& data,
+                     std::vector<char>& buffer, int& position,
+                     Dune::MPIHelper::MPICommunicator comm);
+
 } // end namespace Mpi
 RestartValue loadParallelRestart(const EclipseIO* eclIO, SummaryState& summaryState,
                                  const std::vector<Opm::RestartKey>& solutionKeys,
diff --git a/opm/simulators/utils/ParallelRestart.hpp b/opm/simulators/utils/ParallelRestart.hpp
index e66d4ede7..9b73ecb5f 100644
--- a/opm/simulators/utils/ParallelRestart.hpp
+++ b/opm/simulators/utils/ParallelRestart.hpp
@@ -27,6 +27,7 @@
 #include <opm/material/common/IntervalTabulated2DFunction.hpp>
 #include <opm/material/common/UniformXTabulated2DFunction.hpp>
 #include <opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityOilPvt.hpp>
+#include <opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityWaterPvt.hpp>
 #include <opm/material/fluidsystems/blackoilpvt/DeadOilPvt.hpp>
 #include <opm/material/fluidsystems/blackoilpvt/DryGasPvt.hpp>
 #include <opm/material/fluidsystems/blackoilpvt/GasPvtMultiplexer.hpp>
@@ -200,6 +201,10 @@ std::size_t packSize(const LiveOilPvt<Scalar>& data,
 template<class Scalar>
 std::size_t packSize(const OilPvtThermal<Scalar>& data, Dune::MPIHelper::MPICommunicator comm);
 
+template<class Scalar>
+std::size_t packSize(const ConstantCompressibilityWaterPvt<Scalar>& data,
+                     Dune::MPIHelper::MPICommunicator comm);
+
 ////// pack routines
 
 template<class T>
@@ -316,6 +321,11 @@ template<class Scalar>
 void pack(const OilPvtThermal<Scalar>& data, std::vector<char>& buffer,
           int& position, Dune::MPIHelper::MPICommunicator comm);
 
+template<class Scalar>
+void pack(const ConstantCompressibilityWaterPvt<Scalar>& data,
+          std::vector<char>& buffer, int& position,
+          Dune::MPIHelper::MPICommunicator comm);
+
 void pack(const char* str, std::vector<char>& buffer, int& position,
           Dune::MPIHelper::MPICommunicator comm);
 
@@ -432,6 +442,10 @@ template<class Scalar>
 void unpack(OilPvtThermal<Scalar>& data, std::vector<char>& buffer,
             int& position, Dune::MPIHelper::MPICommunicator comm);
 
+template<class Scalar>
+void unpack(ConstantCompressibilityWaterPvt<Scalar>& data, std::vector<char>& buffer,
+            int& position, Dune::MPIHelper::MPICommunicator comm);
+
 void unpack(char* str, std::size_t length, std::vector<char>& buffer, int& position,
             Dune::MPIHelper::MPICommunicator comm);
 
diff --git a/tests/test_ParallelRestart.cpp b/tests/test_ParallelRestart.cpp
index 475261e85..01dd855bd 100644
--- a/tests/test_ParallelRestart.cpp
+++ b/tests/test_ParallelRestart.cpp
@@ -1136,6 +1136,18 @@ BOOST_AUTO_TEST_CASE(OilPvtThermal)
 }
 
 
+BOOST_AUTO_TEST_CASE(ConstantCompressibilityWaterPvt)
+{
+#ifdef HAVE_MPI
+    Opm::ConstantCompressibilityWaterPvt<double> val1({1.0, 2.0}, {3.0, 4.0}, {5.0, 6.0},
+                                                      {7.0, 8.0}, {9.0, 10.0}, {11.0, 12.0});
+    auto val2 = PackUnpack(val1);
+    BOOST_CHECK(std::get<1>(val2) == std::get<2>(val2));
+    BOOST_CHECK(val1 == std::get<0>(val2));
+#endif
+}
+
+
 bool init_unit_test_func()
 {
     return true;