diff --git a/chapter08/tcl.xml b/chapter08/tcl.xml
index facdfd518..7e5d4357f 100644
--- a/chapter08/tcl.xml
+++ b/chapter08/tcl.xml
@@ -145,9 +145,9 @@ unset SRCDIR</userinput></screen>
     <screen><userinput remap="install">mv /usr/share/man/man3/{Thread,Tcl_Thread}.3</userinput></screen>
 
     <para>If you downloaded the optional documentation, install it by issuing
-    the following commands:</para> 
+    the following commands:</para>
 
- <screen><userinput remap="install">mkdir -v -p /usr/share/doc/tcl-&tcl-version; 
+ <screen><userinput remap="install">mkdir -v -p /usr/share/doc/tcl-&tcl-version;
 cp -v -r  ../html/* /usr/share/doc/tcl-&tcl-version;</userinput></screen>
 
   </sect2>