Index: Ringtoets/Revetment/src/Ringtoets.Revetment.IO/Writers/WaveConditionsCalculationConfigurationWriter.cs
===================================================================
diff -u -r09fb591f0e8017e22b62ca554f6eceeeafa51219 -r316d1a999215783c0fedc22da425d5dd6435bd02
--- Ringtoets/Revetment/src/Ringtoets.Revetment.IO/Writers/WaveConditionsCalculationConfigurationWriter.cs	(.../WaveConditionsCalculationConfigurationWriter.cs)	(revision 09fb591f0e8017e22b62ca554f6eceeeafa51219)
+++ Ringtoets/Revetment/src/Ringtoets.Revetment.IO/Writers/WaveConditionsCalculationConfigurationWriter.cs	(.../WaveConditionsCalculationConfigurationWriter.cs)	(revision 316d1a999215783c0fedc22da425d5dd6435bd02)
@@ -105,19 +105,22 @@
 
         private static void WriteWaveReduction(WaveConditionsInput input, XmlWriter writer)
         {
-            writer.WriteStartElement(ConfigurationSchemaIdentifiers.WaveReduction);
+            if (input.ForeshoreProfile != null)
+            {
+                writer.WriteStartElement(ConfigurationSchemaIdentifiers.WaveReduction);
 
-            writer.WriteElementString(
-                ConfigurationSchemaIdentifiers.UseBreakWater,
-                XmlConvert.ToString(input.UseBreakWater));
+                writer.WriteElementString(
+                    ConfigurationSchemaIdentifiers.UseBreakWater,
+                    XmlConvert.ToString(input.UseBreakWater));
 
-            WriteBreakWaterProperties(input.BreakWater, writer);
+                WriteBreakWaterProperties(input.BreakWater, writer);
 
-            writer.WriteElementString(
-                ConfigurationSchemaIdentifiers.UseForeshore,
-                XmlConvert.ToString(input.UseForeshore));
+                writer.WriteElementString(
+                    ConfigurationSchemaIdentifiers.UseForeshore,
+                    XmlConvert.ToString(input.UseForeshore));
 
-            writer.WriteEndElement();
+                writer.WriteEndElement();
+            }
         }
     }
 }
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