diff --git a/resources/definitions/ultimaker3.def.json b/resources/definitions/ultimaker3.def.json
index 562a56d652..a503cb7739 100644
--- a/resources/definitions/ultimaker3.def.json
+++ b/resources/definitions/ultimaker3.def.json
@@ -112,6 +112,7 @@
         "material_standby_temperature": { "value": "100" },
 		"meshfix_maximum_resolution": { "value": "0.04" },		
         "multiple_mesh_overlap": { "value": "0" },
+        "optimize_wall_printing_order": { "value": "True" },		
         "prime_tower_enable": { "default_value": true },
         "raft_airgap": { "value": "0" },
         "raft_base_thickness": { "value": "0.3" },