diff --git a/opm/simulators/utils/ParallelRestart.cpp b/opm/simulators/utils/ParallelRestart.cpp
index cd1a97609..47733c5b9 100644
--- a/opm/simulators/utils/ParallelRestart.cpp
+++ b/opm/simulators/utils/ParallelRestart.cpp
@@ -25,7 +25,6 @@
 #include <opm/common/OpmLog/Location.hpp>
 #include <opm/parser/eclipse/EclipseState/EclipseConfig.hpp>
 #include <opm/parser/eclipse/EclipseState/Runspec.hpp>
-#include <opm/parser/eclipse/EclipseState/IOConfig/IOConfig.hpp>
 #include <opm/parser/eclipse/EclipseState/IOConfig/RestartConfig.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/Action/ActionAST.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/Action/Actions.hpp>
@@ -553,22 +552,6 @@ std::size_t packSize(const RestartConfig& data, Dune::MPIHelper::MPICommunicator
            packSize(data.saveKeywords(), comm);
 }
 
-std::size_t packSize(const IOConfig& data, Dune::MPIHelper::MPICommunicator comm)
-{
-    return packSize(data.getWriteINITFile(), comm) +
-           packSize(data.getWriteEGRIDFile(), comm) +
-           packSize(data.getUNIFIN(), comm) +
-           packSize(data.getUNIFOUT(), comm) +
-           packSize(data.getFMTIN(), comm) +
-           packSize(data.getFMTOUT(), comm) +
-           packSize(data.getDeckFileName(), comm) +
-           packSize(data.getOutputEnabled(), comm) +
-           packSize(data.getOutputDir(), comm) +
-           packSize(data.getNoSim(), comm) +
-           packSize(data.getBaseName(), comm) +
-           packSize(data.getEclCompatibleRST(), comm);
-}
-
 std::size_t packSize(const Phases& data, Dune::MPIHelper::MPICommunicator comm)
 {
     return packSize(data.getBits(), comm);
@@ -1968,23 +1951,6 @@ void pack(const RestartConfig& data, std::vector<char>& buffer, int& position,
     pack(data.saveKeywords(), buffer, position, comm);
 }
 
-void pack(const IOConfig& data, std::vector<char>& buffer, int& position,
-          Dune::MPIHelper::MPICommunicator comm)
-{
-    pack(data.getWriteINITFile(), buffer, position, comm);
-    pack(data.getWriteEGRIDFile(), buffer, position, comm);
-    pack(data.getUNIFIN(), buffer, position, comm);
-    pack(data.getUNIFOUT(), buffer, position, comm);
-    pack(data.getFMTIN(), buffer, position, comm);
-    pack(data.getFMTOUT(), buffer, position, comm);
-    pack(data.getDeckFileName(), buffer, position, comm);
-    pack(data.getOutputEnabled(), buffer, position, comm);
-    pack(data.getOutputDir(), buffer, position, comm);
-    pack(data.getNoSim(), buffer, position, comm);
-    pack(data.getBaseName(), buffer, position, comm);
-    pack(data.getEclCompatibleRST(), buffer, position, comm);
-}
-
 void pack(const Phases& data, std::vector<char>& buffer, int& position,
           Dune::MPIHelper::MPICommunicator comm)
 {
@@ -3533,30 +3499,6 @@ void unpack(RestartConfig& data, std::vector<char>& buffer, int& position,
                          restart_keyw, save_keyw);
 }
 
-void unpack(IOConfig& data, std::vector<char>& buffer, int& position,
-            Dune::MPIHelper::MPICommunicator comm)
-{
-    bool write_init, write_egrid, unifin, unifout, fmtin, fmtout;
-    std::string deck_name, output_dir, base_name;
-    bool output_enabled, no_sim, ecl_compatible_rst;
-
-    unpack(write_init, buffer, position, comm);
-    unpack(write_egrid, buffer, position, comm);
-    unpack(unifin, buffer, position, comm);
-    unpack(unifout, buffer, position, comm);
-    unpack(fmtin, buffer, position, comm);
-    unpack(fmtout, buffer, position, comm);
-    unpack(deck_name, buffer, position, comm);
-    unpack(output_enabled, buffer, position, comm);
-    unpack(output_dir, buffer, position, comm);
-    unpack(no_sim, buffer, position, comm);
-    unpack(base_name, buffer, position, comm);
-    unpack(ecl_compatible_rst, buffer, position, comm);
-    data = IOConfig(write_init, write_egrid, unifin, unifout, fmtin, fmtout,
-                    deck_name, output_enabled, output_dir,
-                    no_sim, base_name, ecl_compatible_rst);
-}
-
 void unpack(Phases& data, std::vector<char>& buffer, int& position,
             Dune::MPIHelper::MPICommunicator comm)
 {
diff --git a/opm/simulators/utils/ParallelRestart.hpp b/opm/simulators/utils/ParallelRestart.hpp
index b5977e912..71222f605 100644
--- a/opm/simulators/utils/ParallelRestart.hpp
+++ b/opm/simulators/utils/ParallelRestart.hpp
@@ -80,7 +80,6 @@ class EclipseConfig;
 class Eqldims;
 class EndpointScaling;
 class Events;
-class IOConfig;
 template<class T> class IOrderSet;
 class JFunc;
 class Location;
@@ -527,7 +526,6 @@ ADD_PACK_PROTOTYPES(GuideRateModel)
 ADD_PACK_PROTOTYPES(Group)
 ADD_PACK_PROTOTYPES(Group::GroupInjectionProperties)
 ADD_PACK_PROTOTYPES(Group::GroupProductionProperties)
-ADD_PACK_PROTOTYPES(IOConfig)
 ADD_PACK_PROTOTYPES(JFunc)
 ADD_PACK_PROTOTYPES(Location)
 ADD_PACK_PROTOTYPES(MessageLimits)
diff --git a/tests/test_ParallelRestart.cpp b/tests/test_ParallelRestart.cpp
index e3921a54a..60f1fff1b 100644
--- a/tests/test_ParallelRestart.cpp
+++ b/tests/test_ParallelRestart.cpp
@@ -901,7 +901,7 @@ BOOST_AUTO_TEST_CASE(IOConfig)
 #if HAVE_MPI
     Opm::IOConfig val1(true, false, true, false, false, true, "test1", true,
                        "test2", true, "test3", false);
-    auto val2 = PackUnpack(val1);
+    auto val2 = PackUnpack2(val1);
     DO_CHECKS(IOConfig)
 #endif
 }