diff --git a/src/site/docbook/reference/readersAndWriters.xml b/src/site/docbook/reference/readersAndWriters.xml
index ec14d9fb7..1df2bd29c 100644
--- a/src/site/docbook/reference/readersAndWriters.xml
+++ b/src/site/docbook/reference/readersAndWriters.xml
@@ -1593,9 +1593,9 @@ Map aliases = new HashMap();
 aliases.put("trade","org.springframework.batch.sample.domain.Trade");
 aliases.put("price","java.math.BigDecimal");
 aliases.put("customer","java.lang.String");
-Marshaller marshaller = new XStreamMarshaller();
-marshaller.setAliases(aliases);
-xmlStaxEventItemReader.setUnmarshaller(marshaller);
+XStreamMarshaller unmarshaller = new XStreamMarshaller();
+unmarshaller.setAliases(aliases);
+xmlStaxEventItemReader.setUnmarshaller(unmarshaller);
 xmlStaxEventItemReader.setResource(resource);
 xmlStaxEventItemReader.setFragmentRootElementName("trade");
 xmlStaxEventItemReader.open(new ExecutionContext());