diff --git a/doc/install-guide/section_keystone-install.xml b/doc/install-guide/section_keystone-install.xml
index ca5d51436a..8090c0b52e 100644
--- a/doc/install-guide/section_keystone-install.xml
+++ b/doc/install-guide/section_keystone-install.xml
@@ -217,11 +217,11 @@ log_dir = /var/log/keystone</programlisting>
           <para>Run the following command to purge expired tokens every
             hour and log the output to
             <filename>/var/log/keystone/keystone-tokenflush.log</filename>:</para>
-          <screen os="ubuntu;debian"><prompt>#</prompt> <userinput>(crontab -l 2>&amp;1 | grep -q token_flush) || \
+          <screen os="ubuntu;debian"><prompt>#</prompt> <userinput>(crontab -l -u keystone 2>&amp;1 | grep -q token_flush) || \
 echo '@hourly /usr/bin/keystone-manage token_flush >/var/log/keystone/keystone-tokenflush.log 2>&amp;1' >> /var/spool/cron/crontabs/keystone</userinput></screen>
-          <screen os="rhel;centos;fedora"><prompt>#</prompt> <userinput>(crontab -l 2>&amp;1 | grep -q token_flush) || \
+          <screen os="rhel;centos;fedora"><prompt>#</prompt> <userinput>(crontab -l -u keystone 2>&amp;1 | grep -q token_flush) || \
 echo '@hourly /usr/bin/keystone-manage token_flush >/var/log/keystone/keystone-tokenflush.log 2>&amp;1' >> /var/spool/cron/keystone</userinput></screen>
-          <screen os="opensuse;sles"><prompt>#</prompt> <userinput>(crontab -l 2>&amp;1 | grep -q token_flush) || \
+          <screen os="opensuse;sles"><prompt>#</prompt> <userinput>(crontab -l -u keystone 2>&amp;1 | grep -q token_flush) || \
 echo '@hourly /usr/bin/keystone-manage token_flush >/var/log/keystone/keystone-tokenflush.log 2>&amp;1' >> /var/spool/cron/tabs/keystone</userinput></screen>
         </step>
       </substeps>