diff --git a/opm/parser/eclipse/Deck/DeckItem.hpp b/opm/parser/eclipse/Deck/DeckItem.hpp
index 7181f6dd0..e40bbe5aa 100644
--- a/opm/parser/eclipse/Deck/DeckItem.hpp
+++ b/opm/parser/eclipse/Deck/DeckItem.hpp
@@ -135,6 +135,7 @@ namespace Opm {
             serializer(dval);
             serializer(ival);
             serializer(sval);
+            serializer.vector(rsval);
             serializer.vector(uval);
             serializer(type);
             serializer(item_name);
diff --git a/opm/parser/eclipse/Utility/Typetools.hpp b/opm/parser/eclipse/Utility/Typetools.hpp
index 4f7ec876d..77a6d9f81 100644
--- a/opm/parser/eclipse/Utility/Typetools.hpp
+++ b/opm/parser/eclipse/Utility/Typetools.hpp
@@ -44,6 +44,12 @@ public:
         return std_strings;
     }
 
+    template<class Serializer>
+    void serializeOp(Serializer& serializer)
+    {
+      serializer(static_cast<std::string&>(*this));
+    }
+
 };
 
 inline std::string tag_name( type_tag x ) {