diff --git a/plugins/XmlMaterialProfile/XmlMaterialProfile.py b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
index 583febea99..7a2ad3fe51 100644
--- a/plugins/XmlMaterialProfile/XmlMaterialProfile.py
+++ b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
@@ -794,8 +794,6 @@ class XmlMaterialProfile(InstanceContainer):
                     if len(found_materials) == 0:
                         result_metadata.append(new_hotend_material_metadata)
 
-        for metadata in result_metadata:
-            result_metadata.append(metadata)
         return result_metadata
 
     ##  Override of getIdsFromFile because the XML files contain multiple IDs.