diff --git a/Manuals/Docbook/Repository/Usage/section-4.docbook b/Manuals/Docbook/Repository/Usage/section-4.docbook
index b785fd4..0c4790c 100644
--- a/Manuals/Docbook/Repository/Usage/section-4.docbook
+++ b/Manuals/Docbook/Repository/Usage/section-4.docbook
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<section>
+<sect1 id="repository-usage-section-4" xreflabel="Graphic design" label="3.4">
 
     <title>Work lines</title>
 
@@ -20,4 +20,4 @@
     &repository-usage-section-4-3;
     &repository-usage-section-4-4;
 
-</section>
+</sect1>