diff --git a/xml/System/AggregateException.xml b/xml/System/AggregateException.xml
index 49517d657f9..6af2fdad928 100644
--- a/xml/System/AggregateException.xml
+++ b/xml/System/AggregateException.xml
@@ -529,7 +529,7 @@
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>Flattens an <see cref="T:System.AggregateException" /> instances into a single, new instance.</summary>
+        <summary>Flattens a tree of <see cref="T:System.AggregateException" /> instances into a single, new instance.</summary>
         <returns>A new, flattened <see cref="T:System.AggregateException" />.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[