diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index c9b91647d3..d57a814034 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1596,6 +1596,16 @@
                     "limit_to_extruder": "top_bottom_extruder_nr",
                     "settable_per_mesh": true
                 },
+                "ironing_monotonic":
+                {
+                    "label": "Monotonic Ironing Order",
+                    "description": "Print ironing lines in an ordering that causes them to always overlap with adjacent lines in a single direction. This takes slightly more time to print, but makes flat surfaces look more consistent.",
+                    "type": "bool",
+                    "default_value": false,
+                    "enabled": "ironing_enabled and ironing_pattern != 'concentric'",
+                    "limit_to_extruder": "top_bottom_extruder_nr",
+                    "settable_per_mesh": true
+                },
                 "ironing_line_spacing":
                 {
                     "label": "Ironing Line Spacing",