diff --git a/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml b/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
index 853f4e061e..ca67526d6d 100644
--- a/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
@@ -1088,7 +1088,7 @@ wi0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
     <title>802.11a & 802.11g Clients</title>
 
     <para>The &man.ath.4; device driver supports 802.11a and 802.11g. 
-      If your card is based is based on an Atheros chipset, you may
+      If your card is based on an Atheros chipset, you may
       be able to use this driver.</para>
 
     <para>Unfortunately, there are still many vendors that do not