diff --git a/Manuals/Docbook/Repository/Usage/section-3.docbook b/Manuals/Docbook/Repository/Usage/section-3.docbook
index 326884f..a73a9e0 100644
--- a/Manuals/Docbook/Repository/Usage/section-3.docbook
+++ b/Manuals/Docbook/Repository/Usage/section-3.docbook
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<section>
+<sect1 id="repository-usage-section-3" xreflabel="Organization" label="3.3">
 
     <title>File names</title>
 
@@ -13,4 +13,4 @@
     role="directory">Motifs</filename>, <filename
     role="directory">TreeFlower</filename>, etc.).  </para>
 
-</section>
+</sect1>