diff --git a/doc/user-guide-admin/section_nova_cli_manage_flavors.xml b/doc/user-guide-admin/section_nova_cli_manage_flavors.xml
index 61c2103556..16f26c6616 100644
--- a/doc/user-guide-admin/section_nova_cli_manage_flavors.xml
+++ b/doc/user-guide-admin/section_nova_cli_manage_flavors.xml
@@ -103,6 +103,8 @@
                     the flavor name, ID, RAM size, disk size, and the
                     number of VCPUs. </para>
                     <screen><prompt>$</prompt> <userinput>nova flavor-create <replaceable>FLAVOR_NAME</replaceable> <replaceable>FLAVOR_ID</replaceable> <replaceable>RAM_IN_MB ROOT_DISK_IN_GB</replaceable> <replaceable>NUMBER_OF_VCPUS</replaceable></userinput></screen>
+                    <note><para>The Flavor ID should be a number between 1-255 and should not
+                    contain special characters or spaces.</para></note>
               <para>For a list of optional parameters, run the following command:</para> <screen><prompt>$</prompt> <userinput>nova help flavor-create</userinput></screen></step>
     </procedure></section>
     <section xml:id="cli_delete_flavor"><title>Delete a flavor</title><procedure>