diff --git a/index.html b/index.html
index f0c754728..9cbc3a0a7 100644
--- a/index.html
+++ b/index.html
@@ -431,8 +431,8 @@ _.min(numbers);
       <p id="sortBy">
         <b class="header">sortBy</b><code>_.sortBy(list, iterator, [context])</code>
         <br />
-        Returns a sorted <b>list</b>, ranked by the results of running each
-        value through <b>iterator</b>.
+        Returns a sorted copy of <b>list</b>, ranked by the results of running 
+        each value through <b>iterator</b>.
       </p>
       <pre>
 _.sortBy([1, 2, 3, 4, 5, 6], function(num){ return Math.sin(num); });