diff --git a/doc/src/sgml/seg.sgml b/doc/src/sgml/seg.sgml
index e86142d885..e0dfbc76cf 100644
--- a/doc/src/sgml/seg.sgml
+++ b/doc/src/sgml/seg.sgml
@@ -205,8 +205,8 @@ test=> select '6.25 .. 6.50'::seg as "pH";
  </table>

  <para>
   Because {+the+} <literal>...</literal> {+operator+} is widely used in data sources, it is allowed
   as an alternative spelling of [-<literal>..</literal>.-]{+the <literal>..</literal> operator.+}  Unfortunately, this
   creates a parsing ambiguity: it is not clear whether the upper bound
   in <literal>0...23</literal> is meant to be <literal>23</literal> or <literal>0.23</literal>.
   This is resolved by requiring at least one digit before the decimal