diff --git a/index.html b/index.html
index 77c6e9032..36584e3f6 100644
--- a/index.html
+++ b/index.html
@@ -1413,7 +1413,7 @@ Example: <div class="padding-left-medium margin-bottom-none">
 </pre>
     <p>
       You can also use <code>margin-[x|y|xy]-auto</code> to set automatic margins horizontally
-      and/or horizontally.
+      and/or vertically.
     </p>
 
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