diff --git a/chapter08/grub.xml b/chapter08/grub.xml
index 0710c4a37..b301d4f5a 100644
--- a/chapter08/grub.xml
+++ b/chapter08/grub.xml
@@ -177,7 +177,7 @@ mv -v /etc/bash_completion.d/grub /usr/share/bash-completion/completions</userin
       <varlistentry id="grub-fstest">
         <term><command>grub-fstest</command></term>
         <listitem>
-          <para>Is a tool to debug the filesystem driver</para>
+          <para>Is a tool to debug the file system driver</para>
           <indexterm zone="ch-system-grub grub-fstest">
             <primary sortas="b-grub-fstest">grub-fstest</primary>
           </indexterm>