diff --git a/sample.config.xml b/sample.config.xml
index 699a674..1d82dc3 100644
--- a/sample.config.xml
+++ b/sample.config.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <borg xmlns="http://git.square-r00t.net/BorgExtend/"
+      xmlns:xi="http://www.w3.org/2001/XInclude"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://git.square-r00t.net/BorgExtend/plain/config.xsd"
       borgpath="/usr/bin/borg">