diff --git a/doc/src/sgml/lobj.sgml b/doc/src/sgml/lobj.sgml
index a11514c038..c6c63d66be 100644
--- a/doc/src/sgml/lobj.sgml
+++ b/doc/src/sgml/lobj.sgml
@@ -25,7 +25,7 @@
stored within the Postgres database. It causes
considerable confusion among users. As a result, we only
support large objects as data stored within the Postgres
- database in PostgreSQL. Even though is is slower to
+ database in PostgreSQL. Even though it is slower to
access, it provides stricter data integrity.
For historical reasons, this storage scheme is referred to as
Inversion large objects. (We will use Inversion and large