diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 225ae76080..47cb24b1f8 100755
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -4462,7 +4462,7 @@
                     "unit": "mm",
                     "enabled": "resolveOrValue('prime_tower_enable')",
                     "default_value": 200,
-                    "value": "machine_width - max(extruderValue(adhesion_extruder_nr, 'brim_width') * extruderValue(adhesion_extruder_nr, 'initial_layer_line_width_factor') / 100 if adhesion_type == 'brim' else (extruderValue(adhesion_extruder_nr, 'raft_margin') if adhesion_type == 'raft' else (extruderValue(adhesion_extruder_nr, 'skirt_gap') if adhesion_type == 'skirt' else 0)), max(extruderValues('travel_avoid_distance'))) - max(extruderValues('support_offset')) - sum(extruderValues('skirt_brim_line_width')) - 1",
+                    "value": "machine_width - max(extruderValue(adhesion_extruder_nr, 'brim_width') * extruderValue(adhesion_extruder_nr, 'initial_layer_line_width_factor') / 100 if adhesion_type == 'brim' else (extruderValue(adhesion_extruder_nr, 'raft_margin') if adhesion_type == 'raft' else (extruderValue(adhesion_extruder_nr, 'skirt_gap') if adhesion_type == 'skirt' else 0)), max(extruderValues('travel_avoid_distance'))) - max(extruderValues('support_offset')) - sum(extruderValues('skirt_brim_line_width')) * extruderValue(adhesion_extruder_nr, 'initial_layer_line_width_factor') / 100 - 1",
                     "maximum_value": "machine_width / 2 if machine_center_is_zero else machine_width",
                     "minimum_value": "resolveOrValue('prime_tower_size') - machine_width / 2 if machine_center_is_zero else resolveOrValue('prime_tower_size')",
                     "settable_per_mesh": false,
@@ -4476,7 +4476,7 @@
                     "unit": "mm",
                     "enabled": "resolveOrValue('prime_tower_enable')",
                     "default_value": 200,
-                    "value": "machine_depth - prime_tower_size - max(extruderValue(adhesion_extruder_nr, 'brim_width') * extruderValue(adhesion_extruder_nr, 'initial_layer_line_width_factor') / 100 if adhesion_type == 'brim' else (extruderValue(adhesion_extruder_nr, 'raft_margin') if adhesion_type == 'raft' else (extruderValue(adhesion_extruder_nr, 'skirt_gap') if adhesion_type == 'skirt' else 0)), max(extruderValues('travel_avoid_distance'))) - max(extruderValues('support_offset')) - sum(extruderValues('skirt_brim_line_width')) - 1",
+                    "value": "machine_depth - prime_tower_size - max(extruderValue(adhesion_extruder_nr, 'brim_width') * extruderValue(adhesion_extruder_nr, 'initial_layer_line_width_factor') / 100 if adhesion_type == 'brim' else (extruderValue(adhesion_extruder_nr, 'raft_margin') if adhesion_type == 'raft' else (extruderValue(adhesion_extruder_nr, 'skirt_gap') if adhesion_type == 'skirt' else 0)), max(extruderValues('travel_avoid_distance'))) - max(extruderValues('support_offset')) - sum(extruderValues('skirt_brim_line_width')) * extruderValue(adhesion_extruder_nr, 'initial_layer_line_width_factor') / 100 - 1",
                     "maximum_value": "machine_depth / 2 - resolveOrValue('prime_tower_size') if machine_center_is_zero else machine_depth - resolveOrValue('prime_tower_size')",
                     "minimum_value": "machine_depth / -2 if machine_center_is_zero else 0",
                     "settable_per_mesh": false,