Index: Ringtoets/Piping/test/Ringtoets.Piping.Service.Test/PipingInputServiceTest.cs
===================================================================
diff -u -rd515de49557312e4af41b1c051c900d39d1f9e2f -r1781a4b8579c585777b5fb0097c20527f781d7de
--- Ringtoets/Piping/test/Ringtoets.Piping.Service.Test/PipingInputServiceTest.cs	(.../PipingInputServiceTest.cs)	(revision d515de49557312e4af41b1c051c900d39d1f9e2f)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Service.Test/PipingInputServiceTest.cs	(.../PipingInputServiceTest.cs)	(revision 1781a4b8579c585777b5fb0097c20527f781d7de)
@@ -166,5 +166,25 @@
             // Assert
             Assert.IsNull(pipingInput.StochasticSoilProfile);
         }
+
+        [Test]
+        public void SyncStochasticSoilProfileWithStochasticSoilModel_SingleStochasticSoilProfileInSoilModelAlreadySet_StochasticSoilProfileDoesNotChange()
+        {
+            // Setup
+            var soilProfile = new StochasticSoilProfile(0.3, SoilProfileType.SoilProfile1D, 1);
+
+            var soilModel = new StochasticSoilModel(1, "A", "B");
+            soilModel.StochasticSoilProfiles.Add(soilProfile);
+
+            var pipingInput = new PipingInput(new GeneralPipingInput());
+            pipingInput.StochasticSoilModel = soilModel;
+            pipingInput.StochasticSoilProfile = soilProfile;
+
+            // Call
+            PipingInputService.SyncStochasticSoilProfileWithStochasticSoilModel(pipingInput);
+
+            // Assert
+            Assert.AreEqual(soilProfile, pipingInput.StochasticSoilProfile);
+        }
     }
 }
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