diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index bfec3e2e75..96c7de0ea1 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -5687,6 +5687,7 @@
                     "unit": "mm",
                     "type": "float",
                     "default_value": 3,
+                    "minimum_value": "0",
                     "minimum_value_warning": "max(extruderValues('machine_nozzle_size'))",
                     "maximum_value_warning": "10",
                     "enabled": "resolveOrValue('adhesion_type') == 'skirt'",
@@ -5747,7 +5748,7 @@
                     "unit": "mm",
                     "type": "float",
                     "default_value": 0,
-                    "minimum_value": "0",
+                    "minimum_value": "-skirt_brim_line_width / 2",
                     "maximum_value_warning": "skirt_brim_line_width",
                     "enabled": "resolveOrValue('adhesion_type') == 'brim'",
                     "limit_to_extruder": "skirt_brim_extruder_nr",