fix tag typo

git-svn-id: http://svn.osgeo.org/postgis/trunk@14040 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_sfcgal.xml b/doc/reference_sfcgal.xml
index 4879e249c1e9f4977b2db223ca279ce2037c1e2f..8e1c14207350f25ea9bf0cac168d044de019e897 100644 (file)
--- a/doc/reference_sfcgal.xml
+++ b/doc/reference_sfcgal.xml
@@ -770,7 +770,7 @@ FROM  ST_GeomFromText('LINESTRING Z (2 2 6,1.5 1.5 7,1 1 8,0.5 0.5 8,0 0 10)') A
          
          <refsection>
              <title>Example</title>
-             <para>When closed surfaces are created with WKT, they are treated as areal rather than solid.  To make them solid, you need to use <xref linked="ST_MakeSolid" />.
+             <para>When closed surfaces are created with WKT, they are treated as areal rather than solid.  To make them solid, you need to use <xref linkend="ST_MakeSolid" />.
              Areal geometries have no volume.  Here is an example to demonstrate.</para>
              <programlisting>SELECT ST_Volume(geom) As cube_surface_vol, 
        ST_Volume(ST_MakeSolid(geom)) As solid_surface_vol