diff --git a/resources/definitions/ultimaker3.def.json b/resources/definitions/ultimaker3.def.json
index 342c5c4a8e..996037f12f 100644
--- a/resources/definitions/ultimaker3.def.json
+++ b/resources/definitions/ultimaker3.def.json
@@ -58,13 +58,11 @@
         "gantry_height": { "default_value": 60 },
         "machine_disallowed_areas": { "default_value": [
             [[-91.5, -115], [-115, -115], [-115, -104.6], [-91.5, -104.6]],
-            [[-99.5, -104.6], [-115, -104.6], [-115, 104.6], [-99.5, 104.6]],
             [[-94.5, 104.6], [-115, 104.6], [-115, 105.5], [-94.5, 105.5]],
             [[-91.4, 105.5], [-115, 105.5], [-115, 115], [-91.4, 115]],
 
             [[77.3, -115], [77.3, -98.6], [115, -98.6], [115, -115]],
             [[97.2, -98.6], [97.2, -54.5], [113, -54.5], [113, -98.6]],
-            [[100.5, -54.5], [100.5, 99.3], [115, 99.3], [115, -54.5]],
             [[77, 99.3], [77, 115], [115, 115], [115, 99.3]]
         ]},
         "machine_extruder_count": { "default_value": 2 },