diff --git a/resources/extruders/winbo_superhelper155_extruder.def.json b/resources/extruders/winbo_superhelper155_extruder.def.json
index 9935084872..2b406ed43c 100644
--- a/resources/extruders/winbo_superhelper155_extruder.def.json
+++ b/resources/extruders/winbo_superhelper155_extruder.def.json
@@ -13,6 +13,8 @@
             "default_value": 0,
             "maximum_value": "2"
         },
+        "material_diameter": { "default_value": 1.75 },
+        "machine_nozzle_size": { "default_value": 0.4 },
         "machine_nozzle_offset_x": { "default_value": 0.0 },
         "machine_nozzle_offset_y": { "default_value": 0.0 }
     }