diff --git a/cura/Machines/VariantNode.py b/cura/Machines/VariantNode.py
index d4b9831f66..c02bfab1a5 100644
--- a/cura/Machines/VariantNode.py
+++ b/cura/Machines/VariantNode.py
@@ -85,10 +85,13 @@ class VariantNode(ContainerNode):
     def _materialAdded(self, container: ContainerInterface):
         if container.getMetaDataEntry("type") != "material":
             return  # Not interested.
+        if not self.machine.has_materials:
+            return  # We won't add any materials.
         material_definition = container.getMetaDataEntry("definition")
         if not self.machine.has_machine_materials:
             if material_definition != "fdmprinter":
                 return
+
         base_file = container.getMetaDataEntry("base_file")
         if base_file in self.machine.exclude_materials:
             return  # Material is forbidden for this printer.