diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index 3c0aa118c7..4e4acb8e04 100644
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -39,11 +39,13 @@ documentation.  See standalone-profile.xsl for details.
 ./configure
 make
 su
+# The following commands will be executed as root
 make install
 adduser postgres
 mkdir /usr/local/pgsql/data
 chown postgres /usr/local/pgsql/data
 su - postgres
+# The following commands will be executed as postgres
 /usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data
 /usr/local/pgsql/bin/pg_ctl -D /usr/local/pgsql/data -l logfile start
 /usr/local/pgsql/bin/createdb test