diff --git a/scss/_variables.scss b/scss/_variables.scss
index 518affebfa..60fb87015e 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -103,7 +103,7 @@ $padding-sm-horizontal:  .75rem !default;
 $padding-xs-vertical:       .2rem !default;
 $padding-xs-horizontal:     .5rem !default;
 
-$line-height-lg:         1.3333333 !default;
+$line-height-lg:         (4/3) !default;
 $line-height-sm:         1.5 !default;
 
 $border-radius-base:        .25rem !default;