diff --git a/en_US.ISO8859-1/books/developers-handbook/kerneldebug/chapter.sgml b/en_US.ISO8859-1/books/developers-handbook/kerneldebug/chapter.sgml
index 8becc181dd..02fefed630 100644
--- a/en_US.ISO8859-1/books/developers-handbook/kerneldebug/chapter.sgml
+++ b/en_US.ISO8859-1/books/developers-handbook/kerneldebug/chapter.sgml
@@ -991,7 +991,7 @@ Reading symbols from /sys/modules/linux/linux.ko...done.
       </listitem>
 
       <listitem>
-	<para><literal>options WITNESS_SKIPSIN</literal>: disable run-time
+	<para><literal>options WITNESS_SKIPSPIN</literal>: disable run-time
 	  checking of spinlock lock order with WITNESS.  As spin locks are
 	  acquired most frequently in the scheduler, and scheduler events
 	  occur often, this option can significantly speed up systems