diff --git a/general/prog/nasm.xml b/general/prog/nasm.xml
index 3ab81e7bd9..67d47ffa69 100644
--- a/general/prog/nasm.xml
+++ b/general/prog/nasm.xml
@@ -76,9 +76,7 @@
     <para>If you downloaded the optional documentation, put it into the 
     source tree:</para>
 
-<screen><userinput>pushd ..                          &amp;&amp;
-tar -xf nasm-&NASM-version;-xdoc.tar.bz2 &amp;&amp;
-popd</userinput></screen>
+<screen><userinput>tar -xf ../nasm-&NASM-version;-xdoc.tar.xz --strip-components=1</userinput></screen>
 
     <para>Install <application>NASM</application> by running
     the following commands:</para>