diff --git a/opm/io/eclipse/SummaryNode.hpp b/opm/io/eclipse/SummaryNode.hpp
index 428abedaa..7301aa422 100644
--- a/opm/io/eclipse/SummaryNode.hpp
+++ b/opm/io/eclipse/SummaryNode.hpp
@@ -55,6 +55,7 @@ struct SummaryNode {
     Type        type;
     std::string wgname;
     int         number;
+    std::string fip_region;
 
     constexpr static int default_number { std::numeric_limits<int>::min() };
 
diff --git a/src/opm/output/eclipse/Summary.cpp b/src/opm/output/eclipse/Summary.cpp
index 5ba1d9386..259db6b51 100644
--- a/src/opm/output/eclipse/Summary.cpp
+++ b/src/opm/output/eclipse/Summary.cpp
@@ -173,7 +173,7 @@ namespace {
              const std::string& name) -> void
         {
             for (const auto& vector : vectors) {
-                entities.push_back({kwpref + vector.kw, cat, vector.type, name, Opm::EclIO::SummaryNode::default_number });
+                entities.push_back({kwpref + vector.kw, cat, vector.type, name, Opm::EclIO::SummaryNode::default_number, "" });
             }
         };
 
@@ -183,7 +183,7 @@ namespace {
              const std::string& wgname) -> void
         {
             for (const auto &extra_vector : extra_vectors) {
-                entities.push_back({ extra_vector.kw, category, extra_vector.type, wgname, Opm::EclIO::SummaryNode::default_number });
+                entities.push_back({ extra_vector.kw, category, extra_vector.type, wgname, Opm::EclIO::SummaryNode::default_number, "" });
             }
         };
 
@@ -224,7 +224,7 @@ namespace {
                 const int          segNumber) -> void
         {
             for (const auto &requiredVector : requiredVectors) {
-                ret.push_back({requiredVector.first, category, requiredVector.second, well, segNumber});
+                ret.push_back({requiredVector.first, category, requiredVector.second, well, segNumber, ""});
             }
         };