Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Structures/StructuresInputBaseTest.cs
===================================================================
diff -u -r41a37c93cb0b3e36ff7023c9f42b4e6225598b55 -re4e785f127ce9a2d0d1734c1b51e02d910a31bbe
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Structures/StructuresInputBaseTest.cs	(.../StructuresInputBaseTest.cs)	(revision 41a37c93cb0b3e36ff7023c9f42b4e6225598b55)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Structures/StructuresInputBaseTest.cs	(.../StructuresInputBaseTest.cs)	(revision e4e785f127ce9a2d0d1734c1b51e02d910a31bbe)
@@ -89,7 +89,7 @@
 
             // Assert
             Assert.IsInstanceOf<Observable>(input);
-            Assert.IsInstanceOf<ICalculationInput>(input);
+            Assert.IsInstanceOf<IStructuresCalculationInput<StructureBase>>(input);
             Assert.IsInstanceOf<IUseBreakWater>(input);
             Assert.IsInstanceOf<IUseForeshore>(input);