diff --git a/opm/simulators/utils/ParallelEclipseState.cpp b/opm/simulators/utils/ParallelEclipseState.cpp
index c864fb262..477b65012 100644
--- a/opm/simulators/utils/ParallelEclipseState.cpp
+++ b/opm/simulators/utils/ParallelEclipseState.cpp
@@ -68,7 +68,7 @@ const std::vector<int>& ParallelFieldPropsManager::get_int(const std::string& ke
         // Some of the keywords might be defaulted.
         // We will let rank 0 create them and distribute them using get_global_int
         auto data = get_global_int(keyword);
-        auto& local_data = const_cast<std::map<std::string, FieldData<int>>&>(m_intProps)[keyword];
+        auto& local_data = const_cast<std::map<std::string, Fieldprops::FieldData<int>>&>(m_intProps)[keyword];
         local_data.data.resize(m_activeSize());
         local_data.value_status.resize(m_activeSize());
 
@@ -122,7 +122,7 @@ const std::vector<double>& ParallelFieldPropsManager::get_double(const std::stri
         // Some of the keywords might be defaulted.
         // We will let rank 0 create them and distribute them using get_global_int
         auto data = get_global_double(keyword);
-        auto& local_data = const_cast<std::map<std::string, FieldData<double>>&>(m_doubleProps)[keyword];
+        auto& local_data = const_cast<std::map<std::string, Fieldprops::FieldData<double>>&>(m_doubleProps)[keyword];
         local_data.data.resize(m_activeSize());
         local_data.value_status.resize(m_activeSize());
         for (int i = 0; i < m_activeSize(); ++i)
diff --git a/opm/simulators/utils/ParallelEclipseState.hpp b/opm/simulators/utils/ParallelEclipseState.hpp
index b57bfdf30..e0f4ffe40 100644
--- a/opm/simulators/utils/ParallelEclipseState.hpp
+++ b/opm/simulators/utils/ParallelEclipseState.hpp
@@ -103,13 +103,13 @@ public:
 
     void deserialize_tran(const std::vector<char>& buffer) override;
 protected:
-    std::map<std::string, Opm::FieldData<int>> m_intProps; //!< Map of integer properties in process-local compressed indices.
-    std::map<std::string, Opm::FieldData<double>> m_doubleProps; //!< Map of double properties in process-local compressed indices.
+    std::map<std::string, Opm::Fieldprops::FieldData<int>> m_intProps; //!< Map of integer properties in process-local compressed indices.
+    std::map<std::string, Opm::Fieldprops::FieldData<double>> m_doubleProps; //!< Map of double properties in process-local compressed indices.
     FieldPropsManager& m_manager; //!< Underlying field property manager (only used on root process).
     Dune::CollectiveCommunication<Dune::MPIHelper::MPICommunicator> m_comm; //!< Collective communication handler.
     std::function<int(void)> m_activeSize; //!< active size function of the grid
     std::function<int(const int)> m_local2Global; //!< mapping from local to global cartesian indices
-    std::unordered_map<std::string, TranCalculator> m_tran; //!< calculators map
+    std::unordered_map<std::string, Fieldprops::TranCalculator> m_tran; //!< calculators map
 };