diff --git a/3rdparty/libcitygml b/3rdparty/libcitygml
index c1dde5ae..b9b85aba 160000
--- a/3rdparty/libcitygml
+++ b/3rdparty/libcitygml
@@ -1 +1 @@
-Subproject commit c1dde5ae2839784c165840cbd84b8e93773b3e80
+Subproject commit b9b85aba88c238eb5cac9aa987dca8bb00255c1f
diff --git a/wrappers/csharp/LibPLATEAU.NET/CSharpPLATEAU.Test/CityGML/NativeAttributeValueTests.cs b/wrappers/csharp/LibPLATEAU.NET/CSharpPLATEAU.Test/CityGML/NativeAttributeValueTests.cs
index 11034939..12e076ba 100644
--- a/wrappers/csharp/LibPLATEAU.NET/CSharpPLATEAU.Test/CityGML/NativeAttributeValueTests.cs
+++ b/wrappers/csharp/LibPLATEAU.NET/CSharpPLATEAU.Test/CityGML/NativeAttributeValueTests.cs
@@ -81,12 +81,10 @@ public void AsInt_Returns_GML_Value()
         [TestMethod]
         public void AsBool_Returns_GML_Value()
         {
-            const string parentKey = "uro:buildingDetails";
-            const string childKey = "energy:isHeated";
             const bool valueInGmlFile = true;
-            var parentVal = attrMap[parentKey];
+            var parentVal = attrMap["uro:buildingDetails"].AsAttrSet["uro:BuildingDetails"];
             var children = parentVal.AsAttrSet;
-            bool actualVal = children[childKey].AsBool;
+            bool actualVal = children["energy:isHeated"].AsBool;
             Assert.AreEqual(valueInGmlFile, actualVal);
         }
     }