diff --git a/resources/definitions/lotmaxx_sc10.def.json b/resources/definitions/lotmaxx_sc10.def.json
index 42b3113b7a..12345c70c9 100644
--- a/resources/definitions/lotmaxx_sc10.def.json
+++ b/resources/definitions/lotmaxx_sc10.def.json
@@ -19,7 +19,7 @@
         "machine_width": { "default_value": 235 },
         "machine_depth": { "default_value": 235 },
         "machine_height": { "default_value": 320 },
-        "machine_head_polygon": { "default_value": [[-32,11],[-32,-32],[28,-32],[28,11]] },
+        "machine_head_with_fans_polygon": { "default_value": [[-32,11],[-32,-32],[28,-32],[28,11]] },
         "gantry_height": { "value": 40 },
         "machine_start_gcode": { "default_value": "; SC-10 Custom Start G-code\nG28 ; Home all axes\nG92 E0 ; Reset Extruder\nG1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed\nG1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position\nG1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line\nG1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little\nG1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line\nG92 E0 ; Reset Extruder\nG1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed\n; End of custom start GCode" },
         "machine_end_gcode": { "default_value": "; SC-10 Custom End G-code\nG4 ; Wait\nM220 S100 ; Reset Speed factor override percentage to default (100%)\nM221 S100 ; Reset Extrude factor override percentage to default (100%)\nG91 ; Set coordinates to relative\nG1 F1800 E-3 ; Retract filament 3 mm to prevent oozing\nG1 F3000 Z20 ; Move Z Axis up 20 mm to allow filament ooze freely\nG90 ; Set coordinates to absolute\nG1 X0 Y{machine_depth} F1000 ; Move Heat Bed to the front for easy print removal\nM84 ; Disable stepper motors\n; End of custom end GCode" },
diff --git a/resources/definitions/lotmaxx_sc20.def.json b/resources/definitions/lotmaxx_sc20.def.json
index b7c00575cb..4b59a32ec5 100644
--- a/resources/definitions/lotmaxx_sc20.def.json
+++ b/resources/definitions/lotmaxx_sc20.def.json
@@ -19,7 +19,7 @@
         "machine_width": { "default_value": 235 },
         "machine_depth": { "default_value": 235 },
         "machine_height": { "default_value": 320 },
-        "machine_head_polygon": { "default_value": [[-32,11],[-32,-32],[28,-32],[28,11]] },
+        "machine_head_with_fans_polygon": { "default_value": [[-32,11],[-32,-32],[28,-32],[28,11]] },
         "gantry_height": { "value": 40 },
         "machine_start_gcode": { "default_value": "; SC-20 Custom Start G-code\nG28 ; Home all axes\nG92 E0 ; Reset Extruder\nG1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed\nG1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position\nG1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line\nG1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little\nG1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line\nG92 E0 ; Reset Extruder\nG1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed\n; End of custom start GCode" },
         "machine_end_gcode": { "default_value": "; SC-20 Custom End G-code\nG4 ; Wait\nM220 S100 ; Reset Speed factor override percentage to default (100%)\nM221 S100 ; Reset Extrude factor override percentage to default (100%)\nG91 ; Set coordinates to relative\nG1 F1800 E-3 ; Retract filament 3 mm to prevent oozing\nG1 F3000 Z20 ; Move Z Axis up 20 mm to allow filament ooze freely\nG90 ; Set coordinates to absolute\nG1 X0 Y{machine_depth} F1000 ; Move Heat Bed to the front for easy print removal\nM84 ; Disable stepper motors\n; End of custom end GCode" },