diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 3d07faf5cb..c1964af6e5 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -4825,8 +4825,7 @@
                     "label": "Enable Support Brim",
                     "description": "Generate a brim within the support infill regions of the first layer. This brim is printed underneath the support, not around it. Enabling this setting increases the adhesion of support to the build plate.",
                     "type": "bool",
-                    "default_value": false,
-                    "value": "support_structure == 'tree'",
+                    "default_value": true,
                     "enabled": "support_enable or support_meshes_present",
                     "limit_to_extruder": "support_infill_extruder_nr",
                     "settable_per_mesh": false,
@@ -4838,9 +4837,10 @@
                     "description": "The width of the brim to print underneath the support. A larger brim enhances adhesion to the build plate, at the cost of some extra material.",
                     "type": "float",
                     "unit": "mm",
-                    "default_value": 8.0,
+                    "default_value": 1.2,
                     "minimum_value": "0.0",
                     "maximum_value_warning": "50.0",
+                    "value": "(skirt_brim_line_width * initial_layer_line_width_factor / 100.0) * 3",
                     "enabled": "(support_enable or support_meshes_present) and support_brim_enable",
                     "settable_per_mesh": false,
                     "settable_per_extruder": true,
@@ -4852,10 +4852,10 @@
                             "label": "Support Brim Line Count",
                             "description": "The number of lines used for the support brim. More brim lines enhance adhesion to the build plate, at the cost of some extra material.",
                             "type": "int",
-                            "default_value": 20,
+                            "default_value": 3,
                             "minimum_value": "0",
                             "maximum_value_warning": "50 / skirt_brim_line_width",
-                            "value": "math.ceil(support_brim_width / (skirt_brim_line_width * initial_layer_line_width_factor / 100.0))",
+                            "value": "round(support_brim_width / (skirt_brim_line_width * initial_layer_line_width_factor / 100.0))",
                             "enabled": "(support_enable or support_meshes_present) and support_brim_enable",
                             "settable_per_mesh": false,
                             "settable_per_extruder": true,
diff --git a/resources/definitions/ultimaker.def.json b/resources/definitions/ultimaker.def.json
index 33805c9cb9..655ff0e4ec 100644
--- a/resources/definitions/ultimaker.def.json
+++ b/resources/definitions/ultimaker.def.json
@@ -111,8 +111,6 @@
         "speed_layer_0": { "value": "min(30, layer_height / layer_height_0 * speed_wall_0)" },
         "speed_slowdown_layers": { "value": 1 },
         "speed_travel_layer_0": { "value": "speed_travel" },
-        "support_brim_enable": { "value": "True" },
-        "support_brim_width": { "value": "skirt_brim_line_width * 3" },
         "support_infill_rate": { "value": "0 if support_structure == 'tree' else 80 if gradual_support_infill_steps != 0 else 15" },
         "support_initial_layer_line_distance": { "minimum_value_warning": "0 if support_structure == 'tree' else support_line_width" },
         "support_interface_height": { "value": "2 * layer_height" },