diff --git a/resources/extruders/ankermake_m5_extruder_0.def.json b/resources/extruders/ankermake_m5_extruder_0.def.json
index 22a1dfe576..733447af23 100644
--- a/resources/extruders/ankermake_m5_extruder_0.def.json
+++ b/resources/extruders/ankermake_m5_extruder_0.def.json
@@ -7,6 +7,7 @@
     "position": "0"
   },
   "overrides": {
+    "extruder_nr": { "default_value": 0 },
     "material_diameter": { "default_value": 1.75 }
   }
 }