diff --git a/chapters/install.xml b/chapters/install.xml
index 728348086c..0eb5f08c0b 100644
--- a/chapters/install.xml
+++ b/chapters/install.xml
@@ -1238,6 +1238,21 @@ $ /usr/local/sbin/php4-enable
       </para>
      </listitem>
     </varlistentry>
+    <varlistentry id="install.configure.with-cybermut">
+     <term>
+      <parameter>--with-cybermut[=DIR]</parameter>
+     </term>
+     <listitem>
+      <para>
+       PHP 3: Option not available in PHP 3
+      </para>
+      <para>
+       PHP 4: Include Cybermut support into PHP 4. DIR is the Cybermut
+       SDK directory, which contains both <filename>libcm-mac.a</filename>
+       and <filename>cm-mac.h</filename>.
+      </para>
+     </listitem>
+    </varlistentry>
     <varlistentry id="install.configure.with-mck">
      <term>
       <parameter>--with-mck[=DIR]</parameter>
@@ -1273,15 +1288,6 @@ $ /usr/local/sbin/php4-enable
      </listitem>
     </varlistentry>
 
-     <varlistentry id="install.configure.with-cybermut">
-      <term>
-      </term>
-      <listitem>
-       <para>
-       </para>
-      </listitem>
-     </varlistentry>
-
     <varlistentry id="install.configure.with-pfpro">
       <term>
       <parameter>--with-pfpro[=DIR]</parameter>