diff --git a/chapter06/libtool.xml b/chapter06/libtool.xml
index f20151ffb..5de045f40 100644
--- a/chapter06/libtool.xml
+++ b/chapter06/libtool.xml
@@ -54,7 +54,7 @@
 
 <screen><userinput remap="test">make check</userinput></screen>
 
-    <note><para>The test time for libtool can ibe reduced significantly on a
+    <note><para>The test time for libtool can be reduced significantly on a
     system with multiple cores.  To do this, append
     <command>TESTSUITEFLAGS=-j&lt;N&gt;</command> to the line above.  For
     instance, using -j4 can reduce the test time by over 60