diff --git a/doc/xml/user-guide.xml b/doc/xml/user-guide.xml
index 54b4addbf..4404c2e5e 100644
--- a/doc/xml/user-guide.xml
+++ b/doc/xml/user-guide.xml
@@ -536,14 +536,19 @@
                 <exe-cmd-extra>-y 2>&amp;1</exe-cmd-extra>
             </execute>
 
-            <execute if="{[os-type-is-centos]}" user="root" show="n">
+            <execute if="{[os-type-is-centos]} &amp;&amp; '{[package]}' ne 'yum'" user="root" show="n">
                 <exe-cmd>yum -y install {[pgbackrest-repo-path]}/{[package]}</exe-cmd>
                 <exe-cmd-extra>-y 2>&amp;1</exe-cmd-extra>
             </execute>
 
-            <execute if="{[os-type-is-centos]}" user="root" skip="y">
+            <execute if="{[os-type-is-centos]} &amp;&amp; '{[package]}' ne 'yum'" user="root" skip="y">
                 <exe-cmd>yum install pgbackrest</exe-cmd>
             </execute>
+
+            <execute if="{[os-type-is-centos]} &amp;&amp; '{[package]}' eq 'yum'" user="root">
+                <exe-cmd>yum install pgbackrest</exe-cmd>
+                <exe-cmd-extra>-y 2>&amp;1</exe-cmd-extra>
+            </execute>
         </execute-list>
 
         <execute-list if="'{[br-install-user]}' ne 'postgres'" host="{[br-install-host]}">