diff --git a/en_US.ISO8859-1/books/faq/book.xml b/en_US.ISO8859-1/books/faq/book.xml
index 2e564657f9..bdac0623c5 100644
--- a/en_US.ISO8859-1/books/faq/book.xml
+++ b/en_US.ISO8859-1/books/faq/book.xml
@@ -3685,7 +3685,7 @@ C:\="DOS"</programlisting>
 	  <answer>
 	    <para>The <acronym>L2ARC</acronym> is a read cache stored
 	      on a fast device such as an <acronym>SSD</acronym>.
-	      This cache is not persisent across
+	      This cache is not persistent across
 	      reboots.  Note that RAM is used as the first layer
 	      of cache and the L2ARC is only needed if there is
 	      insufficient RAM.</para>