diff --git a/opm/input/eclipse/EclipseState/EclipseState.hpp b/opm/input/eclipse/EclipseState/EclipseState.hpp
index b7d7873d3..91c6a8c22 100644
--- a/opm/input/eclipse/EclipseState/EclipseState.hpp
+++ b/opm/input/eclipse/EclipseState/EclipseState.hpp
@@ -135,6 +135,7 @@ namespace Opm {
             serializer(m_deckUnitSystem);
             serializer(m_inputNnc);
             serializer(m_gridDims);
+            serializer(m_lgrs);
             serializer(m_simulationConfig);
             serializer(aquifer_config);
             serializer(m_transMult);
@@ -170,8 +171,8 @@ namespace Opm {
         EclipseGrid m_inputGrid;
         NNC m_inputNnc;
         GridDims m_gridDims;
-        LgrCollection m_lgrs;
         FieldPropsManager field_props;
+        LgrCollection m_lgrs;
         SimulationConfig m_simulationConfig;
         AquiferConfig aquifer_config;
         TransMult m_transMult;
diff --git a/opm/input/eclipse/EclipseState/Grid/LgrCollection.hpp b/opm/input/eclipse/EclipseState/Grid/LgrCollection.hpp
index b195e10c6..f8a8fd0c0 100644
--- a/opm/input/eclipse/EclipseState/Grid/LgrCollection.hpp
+++ b/opm/input/eclipse/EclipseState/Grid/LgrCollection.hpp
@@ -34,6 +34,9 @@ public:
     LgrCollection();
     LgrCollection(const GRIDSection& gridSection, const GridDims& gridDims);
 
+   static LgrCollection serializationTestObject();
+
+   explicit LgrCollection(const Deck& deck);
 
     size_t size() const;
     bool hasLgr(const std::string& lgrName) const;
diff --git a/src/opm/input/eclipse/EclipseState/EclipseState.cpp b/src/opm/input/eclipse/EclipseState/EclipseState.cpp
index c56e1d4a2..d5f30fd0e 100644
--- a/src/opm/input/eclipse/EclipseState/EclipseState.cpp
+++ b/src/opm/input/eclipse/EclipseState/EclipseState.cpp
@@ -127,7 +127,7 @@ namespace Opm {
         , m_inputNnc(          m_inputGrid, deck)
         , m_gridDims(          deck )
         , field_props(         deck, m_runspec.phases(), m_inputGrid, m_tables)
-        , m_lgrs(         deck)
+        , m_lgrs(              deck)
         , m_simulationConfig(  m_eclipseConfig.init().restartRequested(), deck, field_props)
         , aquifer_config(      m_tables, m_inputGrid, deck, field_props)
         , m_transMult(         GridDims(deck), deck, field_props)