diff --git a/docs/intro_chapter.sgml b/docs/intro_chapter.sgml
index 84aa5cd54b397396d3edb6b2821c476d879a86dd..9ae08b40d77cd9835cc8e81060502070868134b2 100644
--- a/docs/intro_chapter.sgml
+++ b/docs/intro_chapter.sgml
@@ -55,7 +55,7 @@ UNIX the command is:
             </PARA>
             <PARA>
               <COMMAND>
-gzip -d &lt; artemis_compiled.tar.gz | tar xf -
+tar zxf artemis_compiled.tar.gz
               </COMMAND>
             </PARA>
           </LISTITEM>