diff --git a/opm/simulators/utils/ParallelRestart.cpp b/opm/simulators/utils/ParallelRestart.cpp
index 05e624f20..de616cfdc 100644
--- a/opm/simulators/utils/ParallelRestart.cpp
+++ b/opm/simulators/utils/ParallelRestart.cpp
@@ -37,6 +37,7 @@
 #include <opm/parser/eclipse/EclipseState/Schedule/OilVaporizationProperties.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/TimeMap.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQASTNode.hpp>
+#include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQDefine.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQFunction.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQFunctionTable.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/VFPInjTable.hpp>
@@ -1306,6 +1307,15 @@ std::size_t packSize(const UDQASTNode& data,
            packSize(data.getRight(), comm);
 }
 
+std::size_t packSize(const UDQDefine& data,
+                     Dune::MPIHelper::MPICommunicator comm)
+{
+    return packSize(data.keyword(), comm) +
+           packSize(data.getAst(), comm) +
+           packSize(data.var_type(), comm) +
+           packSize(data.input_string(), comm);
+}
+
 ////// pack routines
 
 template<class T>
@@ -2628,6 +2638,16 @@ void pack(const UDQASTNode& data,
     pack(data.getRight(), buffer, position, comm);
 }
 
+void pack(const UDQDefine& data,
+          std::vector<char>& buffer, int& position,
+          Dune::MPIHelper::MPICommunicator comm)
+{
+    pack(data.keyword(), buffer, position, comm);
+    pack(data.getAst(), buffer, position, comm);
+    pack(data.var_type(), buffer, position, comm);
+    pack(data.input_string(), buffer, position, comm);
+}
+
 /// unpack routines
 
 template<class T>
@@ -4496,6 +4516,22 @@ void unpack(UDQASTNode& data,
     data = UDQASTNode(var_type, type, stringValue, scalarValue, selectors, left, right);
 }
 
+void unpack(UDQDefine& data,
+            std::vector<char>& buffer, int& position,
+            Dune::MPIHelper::MPICommunicator comm)
+{
+    std::string keyword;
+    std::shared_ptr<UDQASTNode> ast;
+    UDQVarType varType;
+    std::string string_data;
+
+    unpack(keyword, buffer, position, comm);
+    unpack(ast, buffer, position, comm);
+    unpack(varType, buffer, position, comm);
+    unpack(string_data, buffer, position, comm);
+    data = UDQDefine(keyword, ast, varType, string_data);
+}
+
 #define INSTANTIATE_PACK_VECTOR(T) \
 template std::size_t packSize(const std::vector<T>& data, \
                               Dune::MPIHelper::MPICommunicator comm); \
diff --git a/opm/simulators/utils/ParallelRestart.hpp b/opm/simulators/utils/ParallelRestart.hpp
index ed22ad017..bf8f3b916 100644
--- a/opm/simulators/utils/ParallelRestart.hpp
+++ b/opm/simulators/utils/ParallelRestart.hpp
@@ -113,6 +113,7 @@ class TableSchema;
 class ThresholdPressure;
 class UDAValue;
 class UDQASTNode;
+class UDQDefine;
 class UDQFunction;
 class UDQFunctionTable;
 class UDQParams;
@@ -631,6 +632,7 @@ ADD_PACK_PROTOTYPES(TimeMap)
 ADD_PACK_PROTOTYPES(TimeMap::StepData)
 ADD_PACK_PROTOTYPES(UDAValue)
 ADD_PACK_PROTOTYPES(UDQASTNode)
+ADD_PACK_PROTOTYPES(UDQDefine)
 ADD_PACK_PROTOTYPES(UDQFunction)
 ADD_PACK_PROTOTYPES(UDQFunctionTable)
 ADD_PACK_PROTOTYPES(UDQParams)
diff --git a/tests/test_ParallelRestart.cpp b/tests/test_ParallelRestart.cpp
index 2dd2962bf..77e7f474d 100644
--- a/tests/test_ParallelRestart.cpp
+++ b/tests/test_ParallelRestart.cpp
@@ -44,6 +44,7 @@
 #include <opm/parser/eclipse/EclipseState/Schedule/OilVaporizationProperties.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/TimeMap.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQASTNode.hpp>
+#include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQDefine.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQFunction.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/UDQ/UDQFunctionTable.hpp>
 #include <opm/parser/eclipse/EclipseState/Schedule/VFPInjTable.hpp>
@@ -1708,6 +1709,21 @@ BOOST_AUTO_TEST_CASE(UDQASTNode)
 #endif
 }
 
+BOOST_AUTO_TEST_CASE(UDQDefine)
+{
+#ifdef HAVE_MPI
+    std::shared_ptr<Opm::UDQASTNode> n0;
+    Opm::UDQASTNode n1(Opm::UDQVarType::NONE,
+                       Opm::UDQTokenType::error,
+                       "test", 1.0, {"test1", "test2"}, n0, n0);
+    Opm::UDQDefine val1("test", std::make_shared<Opm::UDQASTNode>(n1),
+                        Opm::UDQVarType::NONE, "test2");
+    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()
 {