diff --git a/lib/isodoc/ieee/presentation_ref.rb b/lib/isodoc/ieee/presentation_ref.rb
index 08a7c15..d984c39 100644
--- a/lib/isodoc/ieee/presentation_ref.rb
+++ b/lib/isodoc/ieee/presentation_ref.rb
@@ -86,12 +86,12 @@ def creatornames(bibitem)
           .render1(RelatonBib::XMLParser.from_xml(bibitem.to_xml))
       end
 
-      def bibliography_bibitem_number1(bibitem, idx)
+      def bibliography_bibitem_number1(bibitem, idx, normative)
         bibitem.xpath(ns(".//docidentifier[@type = 'metanorma' or " \
                          "@type = 'metanorma-ordinal']")).each do |mn|
           /^\[?B?\d\]?$/.match?(mn&.text) and mn.remove
         end
-        unless bibliography_bibitem_number_skip(bibitem)
+        unless bibliography_bibitem_number_skip(bibitem) || normative
           idx += 1
           docidentifier_insert_pt(bibitem).next =
             "<docidentifier type='metanorma-ordinal'>[B#{idx}]</docidentifier>"
diff --git a/lib/metanorma/ieee/version.rb b/lib/metanorma/ieee/version.rb
index 9cff6f6..51d2b39 100644
--- a/lib/metanorma/ieee/version.rb
+++ b/lib/metanorma/ieee/version.rb
@@ -1,5 +1,5 @@
 module Metanorma
   module Ieee
-    VERSION = "1.3.6".freeze
+    VERSION = "1.3.7".freeze
   end
 end
diff --git a/spec/isodoc/refs_spec.rb b/spec/isodoc/refs_spec.rb
index 979d554..18f2d4d 100644
--- a/spec/isodoc/refs_spec.rb
+++ b/spec/isodoc/refs_spec.rb
@@ -332,10 +332,9 @@
                 <bibitem id="ref3">
                    <formattedref format="application/x-isodoc+xml">REF4</formattedref>
                    <docidentifier>REF4</docidentifier>
-                   <docidentifier type="metanorma-ordinal">[B1]</docidentifier>
                    <docidentifier scope="biblio-tag">REF4</docidentifier>
                    <docnumber>4</docnumber>
-                   <biblio-tag>[B1], REF4, </biblio-tag>
+                   <biblio-tag>REF4, </biblio-tag>
                 </bibitem>
                 <bibitem type="book" id="ref2">
                    <formattedref>
@@ -365,9 +364,8 @@
                    <title type="title-main" format="text/plain">Indiana Jones and the Last Crusade</title>
                    <title type="main" format="text/plain">Indiana Jones and the Last Crusade</title>
                    <docidentifier type="ISO">ISO 639:1967</docidentifier>
-                   <docidentifier type="metanorma-ordinal">[B3]</docidentifier>
                    <docidentifier scope="biblio-tag">ISO 639:1967</docidentifier>
-                   <biblio-tag>[B3], ISO 639:1967, </biblio-tag>
+                   <biblio-tag>ISO 639:1967, </biblio-tag>
                 </bibitem>
              </references>
           </sections>