diff --git a/tests/problems/eclproblem.hh b/tests/problems/eclproblem.hh
index 7a3de6fbd..7cc11d8a0 100644
--- a/tests/problems/eclproblem.hh
+++ b/tests/problems/eclproblem.hh
@@ -627,6 +627,7 @@ private:
             const auto& sgofTable = sgofTables[tableIdx];
 
             const auto &SwColumn = swofTable.getSwColumn();
+
             owParams.setKrwSamples(SwColumn, swofTable.getKrwColumn());
             owParams.setKrnSamples(SwColumn, swofTable.getKrowColumn());
             owParams.setPcnwSamples(SwColumn, swofTable.getPcowColumn());
@@ -643,6 +644,11 @@ private:
             owParams.finalize();
             goParams.finalize();
 
+            // compute the connate water saturation. In Eclipse decks that is defined as
+            // the first saturation value of the SWOF keyword.
+            Scalar Swco = SwColumn.front();
+            materialParams_[tableIdx].setConnateWaterSaturation(Swco);
+
             materialParams_[tableIdx].setOilWaterParams(owParams);
             materialParams_[tableIdx].setGasOilParams(goParams);