Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Handlers/HydraulicLocationConfigurationDatabaseUpdateHandler.cs
===================================================================
diff -u -rfd6d7d4c7defad9c9d30ec8f1d418776a1d2062a -recd95bd22d595767cf13aaf0e78b06492455e18a
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Handlers/HydraulicLocationConfigurationDatabaseUpdateHandler.cs	(.../HydraulicLocationConfigurationDatabaseUpdateHandler.cs)	(revision fd6d7d4c7defad9c9d30ec8f1d418776a1d2062a)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Handlers/HydraulicLocationConfigurationDatabaseUpdateHandler.cs	(.../HydraulicLocationConfigurationDatabaseUpdateHandler.cs)	(revision ecd95bd22d595767cf13aaf0e78b06492455e18a)
@@ -63,7 +63,12 @@
                 hydraulicBoundaryDatabase.HydraulicLocationConfigurationSettings,
                 readHydraulicLocationConfigurationDatabaseSettings, hlcdFilePath);
 
-            return null;
+            var changedObjects = new List<IObservable>
+            {
+                hydraulicBoundaryDatabase
+            };
+
+            return changedObjects;
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Handlers/HydraulicLocationConfigurationDatabaseUpdateHandlerTest.cs
===================================================================
diff -u -rfd6d7d4c7defad9c9d30ec8f1d418776a1d2062a -recd95bd22d595767cf13aaf0e78b06492455e18a
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Handlers/HydraulicLocationConfigurationDatabaseUpdateHandlerTest.cs	(.../HydraulicLocationConfigurationDatabaseUpdateHandlerTest.cs)	(revision fd6d7d4c7defad9c9d30ec8f1d418776a1d2062a)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Handlers/HydraulicLocationConfigurationDatabaseUpdateHandlerTest.cs	(.../HydraulicLocationConfigurationDatabaseUpdateHandlerTest.cs)	(revision ecd95bd22d595767cf13aaf0e78b06492455e18a)
@@ -20,6 +20,8 @@
 // All rights reserved.
 
 using System;
+using System.Collections.Generic;
+using Core.Common.Base;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
 using Ringtoets.Common.Data.Hydraulics;
@@ -159,5 +161,23 @@
             Assert.AreEqual(readSettings.WindSpeed, settings.WindSpeed);
             Assert.AreEqual(readSettings.Comment, settings.Comment);
         }
+
+        [Test]
+        public void Update_DataUpdated_ReturnsChangedObjects()
+        {
+            // Setup
+            var handler = new HydraulicLocationConfigurationDatabaseUpdateHandler();
+            var hydraulicBoundaryDatabase = new HydraulicBoundaryDatabase();
+
+            // Call
+            IEnumerable<IObservable> changedObjects = handler.Update(hydraulicBoundaryDatabase, null, "some/file/path");
+
+            // Assert
+            CollectionAssert.AreEqual(new[]
+            {
+                hydraulicBoundaryDatabase
+            }, changedObjects);
+
+        }
     }
 }
\ No newline at end of file