diff --git a/en_US.ISO8859-1/books/faq/book.sgml b/en_US.ISO8859-1/books/faq/book.sgml
index 98a9bbc561..423fa6241a 100644
--- a/en_US.ISO8859-1/books/faq/book.sgml
+++ b/en_US.ISO8859-1/books/faq/book.sgml
@@ -4606,7 +4606,7 @@ kern.timecounter.hardware: TSC -&gt; i8254</screen>
 
       <qandaentry>
         <question id="why-kernel-big">
-          <para>Why is my kernel so big (over 10MB)?</para>
+          <para>Why is my kernel so big (over 10&nbsp;MB)?</para>
         </question>
 
         <answer>
@@ -4640,8 +4640,8 @@ kern.timecounter.hardware: TSC -&gt; i8254</screen>
             be built in debug mode.  As long as you make sure you
             follow the steps above, you can build your kernel
             normally, and you should notice a fairly large size
-            decrease; most kernels tend to be around 1.5MB to
-            2MB.</para>
+            decrease; most kernels tend to be around 1.5&nbsp;MB to
+            2&nbsp;MB.</para>
         </answer>
       </qandaentry>