diff --git a/etc/zebradb/marc_defs/marc21/authorities/authority-koha-indexdefs.xml b/etc/zebradb/marc_defs/marc21/authorities/authority-koha-indexdefs.xml
index 752cd57317..52652bc76a 100644
--- a/etc/zebradb/marc_defs/marc21/authorities/authority-koha-indexdefs.xml
+++ b/etc/zebradb/marc_defs/marc21/authorities/authority-koha-indexdefs.xml
@@ -6,7 +6,7 @@ run the following command:
 authority-zebra-indexdefs.xsl`
 -->
 <kohaidx:index_defs xmlns:kohaidx="http://www.koha-community.org/schemas/index-defs">
-  <id>marc:controlfield[@tag='001']</id>
+  <kohaidx:id>marc:controlfield[@tag='001']</kohaidx:id>
   <!-- variables -->
   <kohaidx:var name="form_subdivision_subfield">v</kohaidx:var>
   <kohaidx:var name="general_subdivision_subfield">x</kohaidx:var>
diff --git a/etc/zebradb/marc_defs/unimarc/authorities/authority-koha-indexdefs.xml b/etc/zebradb/marc_defs/unimarc/authorities/authority-koha-indexdefs.xml
index 3dd486bb18..2695c94933 100644
--- a/etc/zebradb/marc_defs/unimarc/authorities/authority-koha-indexdefs.xml
+++ b/etc/zebradb/marc_defs/unimarc/authorities/authority-koha-indexdefs.xml
@@ -6,7 +6,7 @@ run the following command:
 authority-zebra-indexdefs.xsl`
 -->
 <kohaidx:index_defs xmlns:kohaidx="http://www.koha-community.org/schemas/index-defs">
-  <id>marc:controlfield[@tag='001']</id>
+  <kohaidx:id>marc:controlfield[@tag='001']</kohaidx:id>
   <!-- Original record ID -->
   <kohaidx:index_control_field tag="001">
     <kohaidx:target_index>Local-Number:w</kohaidx:target_index>