diff --git a/build/scss/_variables.scss b/build/scss/_variables.scss
index b0b919504..35dc01861 100644
--- a/build/scss/_variables.scss
+++ b/build/scss/_variables.scss
@@ -177,6 +177,7 @@ $transition-fn: ease-in-out !default;
 
 // TEXT
 // --------------------------------------------------------
+$font-size-xs: ($font-size-base * .75);
 $font-size-xl: ($font-size-base * 2);