diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 8bb6e4983b..04c69c9497 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1792,7 +1792,7 @@
                 "skin_overlap":
                 {
                     "label": "Skin Overlap Percentage",
-                    "description": "Adjust the position where skin is extruded relative to the walls, as a percentage of the line widths of the skin lines and the innermost wall. A slight overlap allows the walls to connect firmly to the skin. Note that, given an equal skin and wall line-width, any percentage over 50% may already cause any skin to go past the wall, because at that point the position of the nozzle of the skin-extruder may already reach past the middle of the wall.",
+                    "description": "Adjust the amount of overlap between the walls and (the endpoints of) the skin-centerlines, as a percentage of the line widths of the skin lines and the innermost wall. A slight overlap allows the walls to connect firmly to the skin. Note that, given an equal skin and wall line-width, any percentage over 50% may already cause any skin to go past the wall, because at that point the position of the nozzle of the skin-extruder may already reach past the middle of the wall.",
                     "unit": "%",
                     "type": "float",
                     "default_value": 5,
@@ -1807,7 +1807,7 @@
                         "skin_overlap_mm":
                         {
                             "label": "Skin Overlap",
-                            "description": "Adjust the position where skin is extruded relative to the walls. A slight overlap allows the walls to connect firmly to the skin. Note that, given an equal skin and wall line-width, any value over half the width of the wall may already cause any skin to go past the wall, because at that point the position of the nozzle of the skin-extruder may already reach past the middle of the wall.",
+                            "description": "Adjust the amount of overlap between the walls and (the endpoints of) the skin-centerlines. A slight overlap allows the walls to connect firmly to the skin. Note that, given an equal skin and wall line-width, any value over half the width of the wall may already cause any skin to go past the wall, because at that point the position of the nozzle of the skin-extruder may already reach past the middle of the wall.",
                             "unit": "mm",
                             "type": "float",
                             "default_value": 0.02,