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-rw-r--r--doc/src/sgml/ltree.sgml2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/src/sgml/ltree.sgml b/doc/src/sgml/ltree.sgml
index d00c91e9857..0a91cd79d1a 100644
--- a/doc/src/sgml/ltree.sgml
+++ b/doc/src/sgml/ltree.sgml
@@ -1,6 +1,6 @@
<!-- doc/src/sgml/ltree.sgml -->
-<sect1 id="ltree">
+<sect1 id="ltree" xreflabel="ltree">
<title>ltree</title>
<indexterm zone="ltree">