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-rw-r--r--doc/manual/package-management.xml2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/manual/package-management.xml b/doc/manual/package-management.xml
index 57967b6d9c38..0b0e57504a37 100644
--- a/doc/manual/package-management.xml
+++ b/doc/manual/package-management.xml
@@ -379,7 +379,7 @@ $ nix-collect-garbage --print-dead</screen>
 Likewise, the option <option>--print-live</option> will show the paths
 that <emphasis>won’t</emphasis> be deleted.</para>
 
-<sect2><title>Garbage collector roots</title>
+<sect2 id="ssec-gc-roots"><title>Garbage collector roots</title>
 
 <para>TODO</para>