diff --git a/doc/src/sgml/intarray.sgml b/doc/src/sgml/intarray.sgml
index a054d12..839a68a 100644
--- a/doc/src/sgml/intarray.sgml
+++ b/doc/src/sgml/intarray.sgml
@@ -315,7 +315,7 @@ SELECT message.mid FROM message WHERE message.sections @@ '1&2'::query_int;
 <programlisting>
 cd .../bench
 createdb TEST
-psql TEST &lt; ../_int.sql
+psql TEST -c "CREATE EXTENSION intarray;"
 ./create_test.pl | psql TEST
 ./bench.pl
 </programlisting>