diff --git a/scss/_utilities.scss b/scss/_utilities.scss
index 7fc732acf6..771dd42251 100644
--- a/scss/_utilities.scss
+++ b/scss/_utilities.scss
@@ -155,6 +155,7 @@ $utilities: map-merge(
     ),
     "border-width": (
       css-var: true,
+      css-variable-name: border-width,
       class: border,
       values: $border-widths
     ),