diff --git a/scss/_variables.scss b/scss/_variables.scss
index d40f9d83e1..5f22350f6a 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -238,7 +238,6 @@ $font-family-base:       $font-family-sans-serif !default;
 $font-size-base: 1rem !default; // Assumes the browser default, typically `16px`
 $font-size-lg:   1.25rem !default;
 $font-size-sm:   .875rem !default;
-$font-size-xs:   .75rem !default;
 
 $font-weight-normal: normal !default;
 $font-weight-bold: bold !default;