diff --git a/scss/_variables.scss b/scss/_variables.scss
index e5aa9e925656..ede7cb1a4c27 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -2,6 +2,9 @@
 //
 // Copy settings from this file into the provided `_custom.scss` to override
 // the Bootstrap defaults without modifying key, versioned files.
+//
+// Variables should follow the `$component-state-property-size` formular for
+// consistent naming. Ex: $nav-link-disabled-color and $modal-content-box-shadow-xs.
 
 
 // Table of Contents