diff --git a/resources/extruders/makeit_l_dual_1st.def.json b/resources/extruders/makeit_l_dual_1st.def.json
index cdab6441eb..bf3f99bfa7 100644
--- a/resources/extruders/makeit_l_dual_1st.def.json
+++ b/resources/extruders/makeit_l_dual_1st.def.json
@@ -15,6 +15,7 @@
         },
         "machine_nozzle_offset_x": { "default_value": 0.0 },
         "machine_nozzle_offset_y": { "default_value": 0.0 },
+        "material_diameter": { "default_value": 1.75 },
 
         "machine_extruder_start_pos_abs": { "default_value": true },
         "machine_extruder_start_pos_x": { "value": "prime_tower_position_x" },
diff --git a/resources/extruders/ord_extruder_0.def.json b/resources/extruders/ord_extruder_0.def.json
index c3f8d75cc0..f98666716d 100644
--- a/resources/extruders/ord_extruder_0.def.json
+++ b/resources/extruders/ord_extruder_0.def.json
@@ -14,6 +14,7 @@
             "maximum_value": "4"
         },
         "machine_nozzle_offset_x": { "default_value": 0.0 },
-        "machine_nozzle_offset_y": { "default_value": 0.0 }
+        "machine_nozzle_offset_y": { "default_value": 0.0 },
+        "material_diameter": { "default_value": 1.75 }
     }
 }