diff --git a/steps/src/main/xml/steps/archive-manifest.xml b/steps/src/main/xml/steps/archive-manifest.xml
index 9b6457b..0dd60c8 100644
--- a/steps/src/main/xml/steps/archive-manifest.xml
+++ b/steps/src/main/xml/steps/archive-manifest.xml
@@ -27,6 +27,9 @@
         archive. Implementations <rfc2119>must</rfc2119> support the <biblioref linkend="zip"/>
         format, specified with the value <code>zip</code>. <impl>It is
             <glossterm>implementation-defined</glossterm> what other formats are supported.</impl>
+        <error code="C0081">It is a <glossterm>dynamic error</glossterm> if the format of the
+          archive does not match the format as specified in the <option>format</option>
+          option.</error>
       </para>
     </listitem>
     <listitem>
@@ -40,8 +43,7 @@
   </itemizedlist>
 
   <para><error code="C0085">It is a <glossterm>dynamic error</glossterm> if the format of the
-      archive does not match the specified format, cannot be understood, determined and/or
-      processed.</error></para>
+      archive cannot be understood, determined and/or processed.</error></para>
 
   <para>The <option>parameters</option> option can be used to supply parameters to control the
     archive manifest generation. <impl>The semantics of the keys and the allowed values for these
diff --git a/steps/src/main/xml/steps/archive.xml b/steps/src/main/xml/steps/archive.xml
index 0d69158..68c67ea 100644
--- a/steps/src/main/xml/steps/archive.xml
+++ b/steps/src/main/xml/steps/archive.xml
@@ -155,7 +155,7 @@
   </itemizedlist>
 
   <para><error code="C0085">It is a <glossterm>dynamic error</glossterm> if the format of the archive 
-    does not match the specified format, cannot be understood, determined and/or processed.</error></para>
+    cannot be understood, determined and/or processed.</error></para>
 
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