diff --git a/reference/mongo/mongocollection/aggregatecursor.xml b/reference/mongo/mongocollection/aggregatecursor.xml
index 7e1052e6e2..4ff2f5aba4 100644
--- a/reference/mongo/mongocollection/aggregatecursor.xml
+++ b/reference/mongo/mongocollection/aggregatecursor.xml
@@ -22,6 +22,14 @@
    just like the <classname>MongoCursor</classname> objects that are returned
    by the <methodname>MongoCollection::find</methodname> method.
   </para>
+  <note>
+   <simpara>
+    The resulting <classname>MongoCommandCursor</classname> will inherit this
+    collection's read preference.
+    <methodname>MongoCommandCursor::setReadPreference</methodname> may be used
+    to change the read preference before iterating on the cursor.
+   </simpara>
+  </note>
  </refsect1>
 
  <refsect1 role="parameters">
diff --git a/reference/mongo/queries.xml b/reference/mongo/queries.xml
index 32ced31d78..b33c7c2556 100644
--- a/reference/mongo/queries.xml
+++ b/reference/mongo/queries.xml
@@ -22,7 +22,7 @@
     <member>Specifically by calling <methodname>MongoClient::setReadPreference</methodname></member>
     <member>At the database level with <methodname>MongoDB::setReadPreference</methodname></member>
     <member>At the collection level with <methodname>MongoCollection::setReadPreference</methodname></member>
-    <member>At the cursor level with <methodname>MongoCursor::setReadPreference</methodname></member>
+    <member>At the cursor level with <methodname>MongoCursor::setReadPreference</methodname> or <methodname>MongoCommandCursor::setReadPreference</methodname></member>
    </simplelist>
    Each class inherits its read preference setting from the "parent" context.
   </para>