diff --git a/contrib/pg_amcheck/t/004_verify_heapam.pl b/contrib/pg_amcheck/t/004_verify_heapam.pl
index a96b763886..0e19d4c7ab 100644
--- a/contrib/pg_amcheck/t/004_verify_heapam.pl
+++ b/contrib/pg_amcheck/t/004_verify_heapam.pl
@@ -215,7 +215,7 @@ $node->safe_psql(
 my $rel = $node->safe_psql('postgres', qq(SELECT pg_relation_filepath('public.test')));
 my $relpath = "$pgdata/$rel";
 
-use constant ROWCOUNT => 12;
+use constant ROWCOUNT => 13;
 $node->safe_psql('postgres', qq(
 	INSERT INTO public.test (a, b, c)
 		VALUES (
@@ -250,10 +250,12 @@ $node->stop;
 
 # Some #define constants from access/htup_details.h for use while corrupting.
 use constant HEAP_HASNULL            => 0x0001;
+use constant HEAP_XMAX_LOCK_ONLY     => 0x0080;
 use constant HEAP_XMIN_COMMITTED     => 0x0100;
 use constant HEAP_XMIN_INVALID       => 0x0200;
 use constant HEAP_XMAX_INVALID       => 0x0800;
 use constant HEAP_NATTS_MASK         => 0x07FF;
+use constant HEAP_KEYS_UPDATED       => 0x2000;
 
 # Corrupt the tuples, one type of corruption per tuple.  Some types of
 # corruption cause verify_heapam to skip to the next tuple without
@@ -350,6 +352,12 @@ for (my $tupidx = 0; $tupidx < ROWCOUNT; $tupidx++)
 		$tup->{c6} = 41;
 		$tup->{c7} = 41;
 	}
+	elsif ($tupidx == 12)
+	{
+		# Set both HEAP_XMAX_LOCK_ONLY and HEAP_KEYS_UPDATED
+		$tup->{t_infomask} |= HEAP_XMAX_LOCK_ONLY;
+		$tup->{t_infomask2} |= HEAP_KEYS_UPDATED;
+	}
 	write_tuple($file, $offset, $tup);
 }
 close($file);