diff --git a/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml b/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
index c7dd16661a..8ad9db1907 100644
--- a/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
+++ b/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
@@ -39,7 +39,7 @@
   <index_control_field tag="007" offset="0" length="2">
     <target_index>ff7-01-02:w</target_index>
   </index_control_field>
-  <!--record.abs line 47: melm 008        date-entered-on-file:n:range(data,0,5),date-entered-on-file:s:range(data,0,5),pubdate:w:range(data,7,4),pubdate:n:range(data,7,4),pubdate:y:range(data,7,4),pubdate:s:range(data,7,4),pl:w:range(data,15,3),ta:w:range(data,22,1),ff8-23:w:range(data,23,1),ff8-29:w:range(data,29,1),lf:w:range(data,33,1),bio:w:range(data,34,1),ln:n:range(data,35,3),ctype:w:range(data,24,4),Record-source:w:range(data,39,0)-->
+  <!--record.abs line 47: melm 008        date-entered-on-file:n:range(data,0,5),date-entered-on-file:s:range(data,0,5),pubdate:w:range(data,7,4),pubdate:n:range(data,7,4),pubdate:y:range(data,7,4),pubdate:s:range(data,7,4),pl:w:range(data,15,3),ta:w:range(data,22,1),ff8-23:w:range(data,23,1),ff8-29:w:range(data,29,1),lf:w:range(data,33,1),bio:w:range(data,34,1),ln:w:range(data,35,3),ctype:w:range(data,24,4),Record-source:w:range(data,39,0)-->
   <index_control_field tag="008" offset="0" length="5">
     <target_index>date-entered-on-file:n</target_index>
   </index_control_field>
@@ -77,7 +77,7 @@
     <target_index>bio:w</target_index>
   </index_control_field>
   <index_control_field tag="008" offset="35" length="3">
-    <target_index>ln:n</target_index>
+    <target_index>ln:w</target_index>
   </index_control_field>
   <index_control_field tag="008" offset="24" length="4">
     <target_index>ctype:w</target_index>
diff --git a/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl b/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl
index db4c6f2c1c..a0f68f1e1f 100644
--- a/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl
+++ b/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl
@@ -122,7 +122,7 @@ definition file (probably something like {biblio,authority}-koha-indexdefs.xml)
     <z:index name="bio:w">
       <xslo:value-of select="substring(., 35, 1)"/>
     </z:index>
-    <z:index name="ln:n">
+    <z:index name="ln:w">
       <xslo:value-of select="substring(., 36, 3)"/>
     </z:index>
     <z:index name="ctype:w">