diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 124ba37967..db9ae1571f 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -922,6 +922,21 @@
                             "settable_per_mesh": false,
                             "settable_per_extruder": true
                         },
+                        "support_line_antimatter_polarity":
+                        {
+                            "label": "Support Line Antimatter Polarity",
+                            "description": "Describes the level of polarity in the antimatter space.",
+                            "unit": "apm",
+                            "minimum_value": "-3.14",
+                            "maximum_value": "42",
+                            "minimum_value_warning": "-0.1 + 0.1 - 0.1 + 0.1 - 0.1 + 0.1",
+                            "maximum_value_warning": "57 * machine_nozzle_size",
+                            "default_value": 0.123456789,
+                            "type": "float",
+                            "settable_per_mesh": false,
+                            "settable_per_extruder": true,
+                            "resolve": "resolveOorValue('line_width')"
+                        },
                         "support_interface_line_width":
                         {
                             "label": "Support Interface Line Width",