diff --git a/docs/_sass/_variables.scss b/docs/_sass/_variables.scss
index 6e9108283..65321b1d0 100644
--- a/docs/_sass/_variables.scss
+++ b/docs/_sass/_variables.scss
@@ -13,7 +13,7 @@ $h3-font-size: 1.6em;
 $h4-font-size: 1.4em;
 $h5-font-size: 1.2em;
 $h6-font-size: 1em;
-$max-width: 850
+$max-width: 850px
 // colorshemes
 
 $background-color: #252525;