diff --git a/GUI/Models/GUIObjectBuilder.cpp b/GUI/Models/GUIObjectBuilder.cpp
index f297cd9d6daa27d319a5b0624e889f34b5b1527f..643d2da92d0d5d76ed81f3f5cded053e528a5652 100644
--- a/GUI/Models/GUIObjectBuilder.cpp
+++ b/GUI/Models/GUIObjectBuilder.cpp
@@ -37,16 +37,6 @@ SpecularInstrumentItem* createSpecularInstrumentItem(InstrumentModel* model,
                                                      const QString& name);
 } // namespace
 
-SessionItem* GUI::Model::ObjectBuilder::populateSampleModelFromSim(SampleModel* sampleModel,
-                                                                   MaterialModel* materialModel,
-                                                                   const ISimulation& simulation)
-{
-    std::unique_ptr<ISimulation> sim(simulation.clone());
-    sim->prepareSimulation();
-    SessionItem* item = populateSampleModel(sampleModel, materialModel, *sim->sample());
-    return item;
-}
-
 SessionItem* GUI::Model::ObjectBuilder::populateSampleModel(SampleModel* sampleModel,
                                                             MaterialModel* materialModel,
                                                             const MultiLayer& sample,
diff --git a/GUI/Models/GUIObjectBuilder.h b/GUI/Models/GUIObjectBuilder.h
index b45774d55d14240ccc5f2ecb45d9142d8d768d40..dba6da4c1f01b62c20cdbe5d94b431c01d461cf2 100644
--- a/GUI/Models/GUIObjectBuilder.h
+++ b/GUI/Models/GUIObjectBuilder.h
@@ -32,9 +32,6 @@ class ExternalProperty;
 
 namespace GUI::Model::ObjectBuilder {
 
-SessionItem* populateSampleModelFromSim(SampleModel* sampleModel, MaterialModel* materialModel,
-                                        const ISimulation& simulation);
-
 SessionItem* populateSampleModel(SampleModel* sampleModel, MaterialModel* materialModel,
                                  const MultiLayer& sample, const QString& sample_name = "");
 
diff --git a/Tests/Functional/GUI/Std/Check.cpp b/Tests/Functional/GUI/Std/Check.cpp
index 61813f103c88a7d28303013e3e14b7bfa4703b29..826d4e781855d5c8e9725c2a5dafdcee0d2bc333 100644
--- a/Tests/Functional/GUI/Std/Check.cpp
+++ b/Tests/Functional/GUI/Std/Check.cpp
@@ -34,8 +34,8 @@ std::unique_ptr<OutputData<double>> domainData(const std::string& /*test_name*/,
     MaterialModel materialModel;
 
     // populating GUI models from domain
-    GUI::Model::ObjectBuilder::populateSampleModelFromSim(&sampleModel, &materialModel,
-                                                          direct_simulation);
+    GUI::Model::ObjectBuilder::populateSampleModel(&sampleModel, &materialModel,
+                                                   *direct_simulation.sample());
     GUI::Model::ObjectBuilder::populateInstrumentModel(&instrumentModel, direct_simulation);
     GUI::Model::ObjectBuilder::populateDocumentModel(&documentModel, direct_simulation);