diff --git a/chapter06/gmp.xml b/chapter06/gmp.xml
index 2832a13fb..e693bf57a 100644
--- a/chapter06/gmp.xml
+++ b/chapter06/gmp.xml
@@ -50,7 +50,6 @@
       command below, then remove it afterwards.</para>
     </note>
 
-    <para>Prepare Zlib for compilation:</para>
     <para>Prepare GMP for compilation:</para>
 
 <screen><userinput remap="configure">./configure --prefix=/usr --enable-cxx --enable-mpbsd</userinput></screen>