diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 131ce22a8c..5af9e4aec4 100755
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1188,6 +1188,17 @@
                     "limit_to_extruder": "wall_0_extruder_nr",
                     "settable_per_mesh": true
                 },
+                "z_seam_relative":
+                {
+                    "label": "Z Seam Relative",
+                    "description": "When enabled, the z seam coordinates are relative to each part's centre. When disabled, the coordinates define an absolute position on the build plate.",
+                    "unit": "mm",
+                    "type": "bool",
+                    "default_value": false,
+                    "enabled": "z_seam_type == 'back'",
+                    "limit_to_extruder": "wall_0_extruder_nr",
+                    "settable_per_mesh": true
+                },
                 "skin_no_small_gaps_heuristic":
                 {
                     "label": "Ignore Small Z Gaps",