diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index ba5ea5d13f..89730a1572 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1196,7 +1196,7 @@
                     "description": "The minimal temperature while heating up to the Printing Temperature at which printing can already start.",
                     "unit": "°C",
                     "type": "float",
-                    "default_value": 190,
+                    "value": "max(-273.15, material_print_temperature - 10)",
                     "minimum_value": "-273.15",
                     "minimum_value_warning": "material_standby_temperature",
                     "maximum_value_warning": "material_print_temperature",
@@ -1210,7 +1210,7 @@
                     "description": "The temperature to which to already start cooling down just before the end of printing.",
                     "unit": "°C",
                     "type": "float",
-                    "default_value": 180,
+                    "value": "max(-273.15, material_print_temperature - 15)",
                     "minimum_value": "-273.15",
                     "minimum_value_warning": "material_standby_temperature",
                     "maximum_value_warning": "material_print_temperature",