diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 305d841175..2d71187be6 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -4336,6 +4336,50 @@
                         }
                     }
                 },
+                "support_interface_offset": 
+                {
+                    "label": "Support Interface Offset",
+                    "description": "Amount of offset applied to the support interface polygons.",
+                    "unit": "mm",
+                    "type": "float",
+                    "minimum_value": "0",
+                    "default_value": 0.0,
+                    "limit_to_extruder": "support_interface_extruder_nr",
+                    "enabled": "support_interface_enable and (support_enable or support_tree_enable)",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true,
+                    "children":
+                    {
+                        "support_roof_offset": 
+                        {
+                            "label": "Support Roof Offset",
+                            "description": "Amount of offset applied to the roofs of the support.",
+                            "unit": "mm",
+                            "type": "float",
+                            "minimum_value": "0",
+                            "default_value": 0.0,
+                            "value": "extruderValue(support_roof_extruder_nr, 'support_interface_offset')",
+                            "limit_to_extruder": "support_roof_extruder_nr",
+                            "enabled": "support_roof_enable and (support_enable or support_tree_enable)",
+                            "settable_per_mesh": false,
+                            "settable_per_extruder": true
+                        },
+                        "support_bottom_offset": 
+                        {
+                            "label": "Support Floor Offset",
+                            "description": "Amount of offset applied to the floors of the support.",
+                            "unit": "mm",
+                            "type": "float",
+                            "minimum_value": "0",
+                            "default_value": 0.0,
+                            "value": "extruderValue(support_bottom_extruder_nr, 'support_interface_offset')",
+                            "limit_to_extruder": "support_bottom_extruder_nr",
+                            "enabled": "support_bottom_enable and (support_enable or support_tree_enable)",
+                            "settable_per_mesh": false,
+                            "settable_per_extruder": true
+                        }
+                    }
+                },
                 "support_fan_enable":
                 {
                     "label": "Fan Speed Override",