diff --git a/scss/_list.scss b/scss/_list.scss
index ced36e20a..02b30d9ec 100644
--- a/scss/_list.scss
+++ b/scss/_list.scss
@@ -10,7 +10,7 @@
 }
 
 .#{$fa-css-prefix}-li {
-  left: calc(var(--#{$fa-css-prefix}-li-width, #{$fa-li-width}) * -1);
+  left: var(--#{$fa-css-prefix}-li-width, calc(#{$fa-li-width} * -1));
   position: absolute;
   text-align: center;
   width: var(--#{$fa-css-prefix}-li-width, #{$fa-li-width});