diff --git a/doc/src/sgml/pgbuffercache.sgml b/doc/src/sgml/pgbuffercache.sgml
index 2479181c5f4..fd2446d6542 100644
--- a/doc/src/sgml/pgbuffercache.sgml
+++ b/doc/src/sgml/pgbuffercache.sgml
@@ -149,7 +149,7 @@
 
 <screen>
 regression=# SELECT n.nspname, c.relname, count(*) AS buffers
-             FROM pg_buffercache b INNER JOIN pg_class c
+             FROM pg_buffercache b JOIN pg_class c
              ON b.relfilenode = pg_relation_filenode(c.oid) AND
                 b.reldatabase IN (0, (SELECT oid FROM pg_database
                                       WHERE datname = current_database()))