diff --git a/docs/html/guide/topics/data/backup.jd b/docs/html/guide/topics/data/backup.jd
index 477fef9220589..79dfd883e39d9 100644
--- a/docs/html/guide/topics/data/backup.jd
+++ b/docs/html/guide/topics/data/backup.jd
@@ -710,7 +710,7 @@ lock for the synchronized statements:</p>
 
 <pre>
 // Object for intrinsic lock
-static final Object[] sDataLock = new Object[0];
+static final Object sDataLock = new Object();
 </pre>
 
 <p>Then create a synchronized statement with this lock each time you read or write the files. For