Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/FileImporters/ReferenceLineImporterTest.cs
===================================================================
diff -u -rc6a3cd9e25138d35bf0881f3ff6df9dfe1776fd2 -re04155c0cc0efa8bbd13e0a82cb8643711a2dfd6
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/FileImporters/ReferenceLineImporterTest.cs	(.../ReferenceLineImporterTest.cs)	(revision c6a3cd9e25138d35bf0881f3ff6df9dfe1776fd2)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/FileImporters/ReferenceLineImporterTest.cs	(.../ReferenceLineImporterTest.cs)	(revision e04155c0cc0efa8bbd13e0a82cb8643711a2dfd6)
@@ -30,11 +30,10 @@
             var importer = new ReferenceLineImporter();
 
             // Assert
-            Assert.IsInstanceOf<IFileImporter>(importer);
+            Assert.IsInstanceOf<FileImporterBase<ReferenceLineContext>>(importer);
             Assert.AreEqual("Referentielijn", importer.Name);
             Assert.AreEqual("Algemeen", importer.Category);
             TestHelper.AssertImagesAreEqual(RingtoetsIntegrationFormsResources.ReferenceLineIcon, importer.Image);
-            Assert.AreEqual(typeof(ReferenceLineContext), importer.SupportedItemType);
             Assert.AreEqual("Referentielijn shapefile (*.shp)|*.shp", importer.FileFilter);
         }