diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 8b8f4fc8d2..1b3d0ac79e 100755
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -3469,7 +3469,7 @@
                             "default_value": 0.1,
                             "type": "float",
                             "enabled": "support_enable",
-                            "value": "round(extruderValue(support_roof_extruder_nr if support_roof_enable else support_infill_extruder_nr, 'material_adhesion_tendency') / 2 if (layer_height >= 0.2) 1) * layer_height",
+                            "value": "min(math.ceil(extruderValues('material_adhesion_tendency')) / (2 if (layer_height >= 0.2) else 1)) * layer_height",
                             "limit_to_extruder": "support_roof_extruder_nr if support_roof_enable else support_infill_extruder_nr",
                             "settable_per_mesh": true
                         },
@@ -3481,7 +3481,7 @@
                             "minimum_value": "0",
                             "maximum_value_warning": "machine_nozzle_size",
                             "default_value": 0.1,
-                            "value": "round(extruderValue(support_roof_extruder_nr if support_roof_enable else support_infill_extruder_nr, 'material_adhesion_tendency') / 2) * layer_height",
+                            "value": "min(math.ceil(extruderValues('material_adhesion_tendency')) / 2) * layer_height",
                             "limit_to_extruder": "support_bottom_extruder_nr if support_bottom_enable else support_infill_extruder_nr",
                             "type": "float",
                             "enabled": "support_enable and resolveOrValue('support_type') == 'everywhere'",