diff --git a/chapter06/ncurses.xml b/chapter06/ncurses.xml
index 22ccfd476..2d2baf7dc 100644
--- a/chapter06/ncurses.xml
+++ b/chapter06/ncurses.xml
@@ -135,7 +135,7 @@ popd</userinput></screen>
           <para>This switch prevents the building system from using the
           <command>mawk</command> program from the host.
           Some<!-- FIXME vauge --> versions of <command>mawk</command> can
-          cause this package fail to build.  <!-- It seems happened in 2015,
+          cause this package to fail to build.  <!-- It seems happened in 2015,
           is there any updated into? --></para>
         </listitem>
       </varlistentry>