diff --git a/plugins/VersionUpgrade/VersionUpgrade462to47/VersionUpgrade462to47.py b/plugins/VersionUpgrade/VersionUpgrade462to47/VersionUpgrade462to47.py
index c340fd0c72..9a70963e6b 100644
--- a/plugins/VersionUpgrade/VersionUpgrade462to47/VersionUpgrade462to47.py
+++ b/plugins/VersionUpgrade/VersionUpgrade462to47/VersionUpgrade462to47.py
@@ -58,6 +58,15 @@ class VersionUpgrade462to47(VersionUpgrade):
                 maximum_deviation = "=(" + maximum_deviation + ") / 2"
                 parser["values"]["meshfix_maximum_deviation"] = maximum_deviation
 
+            # Ironing inset is now based on the flow-compensated line width to make the setting have a more logical UX.
+            # Adjust so that the actual print result remains the same.
+            if "ironing_inset" in parser["values"]:
+                ironing_inset = parser["values"]["ironing_inset"]
+                if ironing_inset.startswith("="):
+                    ironing_inset = ironing_inset[1:]
+                ironing_inset = "=(" + ironing_inset + ") + skin_line_width * (1.0 - ironing_flow) / 2"
+                parser["values"]["ironing_inset"] = ironing_inset
+
         result = io.StringIO()
         parser.write(result)
         return [filename], [result.getvalue()]
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 9da1829d9c..41031dbe2c 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1575,7 +1575,7 @@
                     "type": "float",
                     "unit": "mm",
                     "default_value": 0.35,
-                    "value": "wall_line_width_0 / 2",
+                    "value": "wall_line_width_0 / 2 + skin_line_width * (1.0 - ironing_flow) / 2",
                     "minimum_value_warning": "0",
                     "maximum_value_warning": "wall_line_width_0",
                     "enabled": "ironing_enabled",
diff --git a/resources/definitions/hms434.def.json b/resources/definitions/hms434.def.json
index a3d8edc57d..07ea24b2c2 100644
--- a/resources/definitions/hms434.def.json
+++ b/resources/definitions/hms434.def.json
@@ -104,7 +104,7 @@
         "skin_outline_count":        {"value": "0"},
         "ironing_line_spacing":      {"value": "line_width / 4 * 3"},
         "ironing_flow":              {"value": "0"},
-        "ironing_inset":             {"value": "ironing_line_spacing"},
+        "ironing_inset":             {"value": "ironing_line_spacing + skin_line_width * (1.0 - ironing_flow) / 2"},
         "speed_ironing":             {"value": "150"},
  
         "infill_sparse_density": {"value": 30},
diff --git a/resources/definitions/skriware_2.def.json b/resources/definitions/skriware_2.def.json
index c4449129b7..3b127b9a8f 100644
--- a/resources/definitions/skriware_2.def.json
+++ b/resources/definitions/skriware_2.def.json
@@ -345,7 +345,7 @@
             "value": "0.8"
         },
         "ironing_inset": {
-            "value": "0.2"
+            "value": "0.2 + skin_line_width * (1.0 - ironing_flow) / 2"
         },
         "jerk_travel": {
             "value": "10"