diff --git a/src/Core/Geometry/TopologicalMesh.cpp b/src/Core/Geometry/TopologicalMesh.cpp
index 0068ebed8bb..b6833170382 100644
--- a/src/Core/Geometry/TopologicalMesh.cpp
+++ b/src/Core/Geometry/TopologicalMesh.cpp
@@ -712,6 +712,7 @@ TriangleMesh TopologicalMesh::toTriangleMeshFromWedges() {
 }
 
 void TopologicalMesh::updateTriangleMesh( Ra::Core::Geometry::TriangleMesh& /*mesh*/ ) {
+    CORE_ASSERT( false, "not implemented yet" );
     ///\todo ;)
 }