diff --git a/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.hpp b/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.hpp
index 24149546b..0a7c90222 100644
--- a/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.hpp
+++ b/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.hpp
@@ -64,8 +64,7 @@ namespace Opm {
         WellSegments() = default;
         WellSegments(const DeckKeyword& keyword);
         WellSegments(CompPressureDrop compDrop,
-                     const std::vector<Segment>& segments,
-                     const std::map<int,int>& segmentNumberIdx);
+                     const std::vector<Segment>& segments);
 
         std::size_t size() const;
         double depthTopSegment() const;
@@ -92,7 +91,6 @@ namespace Opm {
         // it returns true if there is no error encountered during the update
         bool updateWSEGSICD(const std::vector<std::pair<int, SpiralICD> >& sicd_pairs);
         const std::vector<Segment>& segments() const;
-        const std::map<int,int>& segmentNumberIndex() const;
 
         bool updateWSEGVALV(const std::vector<std::pair<int, Valve> >& valve_pairs);
 
diff --git a/src/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.cpp b/src/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.cpp
index 1c9eb2d27..c3ea4aa90 100644
--- a/src/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.cpp
+++ b/src/opm/parser/eclipse/EclipseState/Schedule/MSW/WellSegments.cpp
@@ -37,12 +37,11 @@
 namespace Opm {
 
     WellSegments::WellSegments(CompPressureDrop compDrop,
-                               const std::vector<Segment>& segments,
-                               const std::map<int,int>& segmentNumberIdx)
+                               const std::vector<Segment>& segments)
        : m_comp_pressure_drop(compDrop)
-       , m_segments(segments)
-       , segment_number_to_index(segmentNumberIdx)
     {
+        for (const auto& segment : segments)
+            this->addSegment(segment);
     }
 
 
@@ -558,8 +557,5 @@ const std::vector<Segment>& WellSegments::segments() const {
     return m_segments;
 }
 
-const std::map<int,int>& WellSegments::segmentNumberIndex() const {
-    return segment_number_to_index;
-}
 
 }