diff --git a/src/test/regress/expected/pg_lsn.out b/src/test/regress/expected/pg_lsn.out
index 01d298397bc..504768c2038 100644
--- a/src/test/regress/expected/pg_lsn.out
+++ b/src/test/regress/expected/pg_lsn.out
@@ -52,13 +52,13 @@ SELECT '0/16AE7F8' > pg_lsn '0/16AE7F7';
  t
 (1 row)
 
-SELECT '0/16AE7F7'::pg_lsn - '0/16AE7F8'::pg_lsn; -- No negative results
+SELECT '0/16AE7F7'::pg_lsn - '0/16AE7F8'::pg_lsn;
  ?column? 
 ----------
        -1
 (1 row)
 
-SELECT '0/16AE7F8'::pg_lsn - '0/16AE7F7'::pg_lsn; -- correct
+SELECT '0/16AE7F8'::pg_lsn - '0/16AE7F7'::pg_lsn;
  ?column? 
 ----------
         1
diff --git a/src/test/regress/sql/pg_lsn.sql b/src/test/regress/sql/pg_lsn.sql
index dddafb32f71..1634d37f701 100644
--- a/src/test/regress/sql/pg_lsn.sql
+++ b/src/test/regress/sql/pg_lsn.sql
@@ -21,5 +21,5 @@ SELECT '0/16AE7F8' = '0/16AE7F8'::pg_lsn;
 SELECT '0/16AE7F8'::pg_lsn != '0/16AE7F7';
 SELECT '0/16AE7F7' < '0/16AE7F8'::pg_lsn;
 SELECT '0/16AE7F8' > pg_lsn '0/16AE7F7';
-SELECT '0/16AE7F7'::pg_lsn - '0/16AE7F8'::pg_lsn; -- No negative results
-SELECT '0/16AE7F8'::pg_lsn - '0/16AE7F7'::pg_lsn; -- correct
+SELECT '0/16AE7F7'::pg_lsn - '0/16AE7F8'::pg_lsn;
+SELECT '0/16AE7F8'::pg_lsn - '0/16AE7F7'::pg_lsn;