diff --git a/resources/definitions/ultimaker.def.json b/resources/definitions/ultimaker.def.json
index b11a84164a..797a05e324 100644
--- a/resources/definitions/ultimaker.def.json
+++ b/resources/definitions/ultimaker.def.json
@@ -31,6 +31,11 @@
         {
             "minimum_value": "0",
             "maximum_value": "machine_width"
+        },
+        "relative_extrusion":
+        {
+            "value": false,
+            "enabled": false
         }
     }
 }