diff --git a/doc/src/sgml/indexam.sgml b/doc/src/sgml/indexam.sgml
index 390c49eb6a..649020b7da 100644
--- a/doc/src/sgml/indexam.sgml
+++ b/doc/src/sgml/indexam.sgml
@@ -612,7 +612,7 @@ amgettuple (IndexScanDesc scan,
   will pass the caller's snapshot test.  On success, <function>amgettuple</function>
   must also set <literal>scan-&gt;xs_recheck</literal> to true or false.
   False means it is certain that the index entry matches the scan keys.
   [-true-]{+True+} means this is not certain, and the conditions represented by the
   scan keys must be rechecked against the heap tuple after fetching it.
   This provision supports <quote>lossy</quote> index operators.
   Note that rechecking will extend only to the scan conditions; a partial