diff --git a/chapter10/kernel.xml b/chapter10/kernel.xml
index cf0b30f35..6eafeaf27 100644
--- a/chapter10/kernel.xml
+++ b/chapter10/kernel.xml
@@ -87,7 +87,7 @@
     un-tarring.</para>
 
     <para>There are several ways to configure the kernel options. Usually,
-    This is done through a menu-driven interface, for example:</para>
+    this is done through a menu-driven interface, for example:</para>
 
 <screen role="nodump"><userinput>make menuconfig</userinput></screen>