diff --git a/doc/src/sgml/textsearch.sgml b/doc/src/sgml/textsearch.sgml
index 9c889feb6b..5e1536da66 100644
--- a/doc/src/sgml/textsearch.sgml
+++ b/doc/src/sgml/textsearch.sgml
@@ -1643,7 +1643,7 @@ SELECT to_tsquery('fat') <-> to_tsquery('cat | rat');
      <listitem>
       <para>
        Returns a query that searches for a match to the first given query
-       followed by a match to the second given query at a distance of at
+       followed by a match to the second given query at a distance of exactly
        <replaceable>distance</replaceable> lexemes, using
        the <literal>&lt;<replaceable>N</replaceable>&gt;</literal>
        <type>tsquery</type> operator.  For example: