diff --git a/doc/arch-design/storage_focus/section_prescriptive_examples_storage_focus.xml b/doc/arch-design/storage_focus/section_prescriptive_examples_storage_focus.xml
index 5a8d16fccb..e8fc078380 100644
--- a/doc/arch-design/storage_focus/section_prescriptive_examples_storage_focus.xml
+++ b/doc/arch-design/storage_focus/section_prescriptive_examples_storage_focus.xml
@@ -53,7 +53,7 @@
     <itemizedlist>
         <listitem>
             <para>10 storage servers each with 12x4 TB disks equaling
-                480 TB total space with approximately 160 Tb of
+                480 TB total space with approximately 160 TB of
                 usable space after replicas.</para>
         </listitem>
     </itemizedlist>
@@ -162,7 +162,7 @@
         <listitem>
             <para>10 storage servers each with 12x4 TB disks which
                 equals 480 TB total space with about approximately 160
-                Tb of usable space after 3 replicas</para>
+                TB of usable space after 3 replicas</para>
         </listitem>
     </itemizedlist>
     <para>REST proxy:</para>