diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index b5d3796e74..c153ca3b07 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -410,7 +410,7 @@
                         },
                         "skin_line_width":
                         {
-                            "label": "Top/bottom Line Width",
+                            "label": "Top/Bottom Line Width",
                             "description": "Width of a single top/bottom line.",
                             "unit": "mm",
                             "minimum_value": "0.0001",