diff --git a/chapter06/manpages-exp.xml b/chapter06/manpages-exp.xml
index c04aa13f4..2f38ecea8 100644
--- a/chapter06/manpages-exp.xml
+++ b/chapter06/manpages-exp.xml
@@ -2,7 +2,7 @@
 <title>Command explanations</title>
 
 <para>
-<userinput>patch -Np1 -i ../man-pages-&manpages-version;.patch</userinput>:
+<userinput>patch -Np1 -i ../man-pages-&man-pages-version;.patch</userinput>:
 We patch the man-pages package to include three important missing pages:
 <filename>ldd</filename>'s, and <filename>ld.so</filename>'s
 </para>