Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/OvertoppingCalculationWaveHeightParser.cs
===================================================================
diff -u -r57c9aff5c1e30cb83c1cc2f33c7ce97dfe8d04fe -r90ccab67b04e117a32943e14f0b1845083962eaf
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/OvertoppingCalculationWaveHeightParser.cs	(.../OvertoppingCalculationWaveHeightParser.cs)	(revision 57c9aff5c1e30cb83c1cc2f33c7ce97dfe8d04fe)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/OvertoppingCalculationWaveHeightParser.cs	(.../OvertoppingCalculationWaveHeightParser.cs)	(revision 90ccab67b04e117a32943e14f0b1845083962eaf)
@@ -83,14 +83,12 @@
         {
             try
             {
-                double waveHeight = double.NaN;
                 object waveHeightResult = result[waveHeightColumn];
 
-                if (waveHeightResult.GetType() != typeof(DBNull))   
-                {
-                    waveHeight = Convert.ToDouble(waveHeightResult);
-                }
-                
+                double waveHeight = waveHeightResult.GetType() != typeof(DBNull)
+                                        ? Convert.ToDouble(waveHeightResult)
+                                        : double.NaN;
+
                 bool isOvertoppingDominant = Convert.ToBoolean(result[isOvertoppingDominantColumn]);
 
                 Output = new OvertoppingCalculationWaveHeightOutput(waveHeight,