diff --git a/reference/xmlwriter/xmlwriter/setindent.xml b/reference/xmlwriter/xmlwriter/setindent.xml
index c658986acaea..d5ed84d2c984 100644
--- a/reference/xmlwriter/xmlwriter/setindent.xml
+++ b/reference/xmlwriter/xmlwriter/setindent.xml
@@ -78,7 +78,7 @@
 <?php
 $writer = new XMLWriter();
 $writer->openMemory();
-$writer->setIndent(2);
+$writer->setIndent(true);
 $writer->startDocument();
 $writer->startElement('p');
 $writer->text('before');