diff --git a/src/org/apache/xml/serializer/output_xml.properties b/src/org/apache/xml/serializer/output_xml.properties
index 0c8f5be..a5a9470 100644
--- a/src/org/apache/xml/serializer/output_xml.properties
+++ b/src/org/apache/xml/serializer/output_xml.properties
@@ -40,7 +40,8 @@
 #              xalan:content-handler="MyContentHandler"/>
 #  ...
 # Note that the colon after the protocol needs to be escaped.
-{http\u003a//xml.apache.org/xalan}indent-amount=0
+# {http\u003a//xml.apache.org/xalan}indent-amount=0
+{http\u003a//xml.apache.org/xalan}indent-amount=2
 {http\u003a//xml.apache.org/xalan}content-handler=org.apache.xml.serializer.ToXMLStream
 {http\u003a//xml.apache.org/xalan}entities=org/apache/xml/serializer/XMLEntities