diff --git a/rero_ils/config.py b/rero_ils/config.py
index 6fe9bb5053..cc11b5e0c3 100644
--- a/rero_ils/config.py
+++ b/rero_ils/config.py
@@ -2495,7 +2495,7 @@ def _(x):
     default_order='asc'
 )
 RECORDS_REST_SORT_OPTIONS['items']['enumeration_chronology'] = dict(
-    fields=['-enumerationAndChronology'], title='Enumeration and Chronology',
+    fields=['-enumerationAndChronology.sort'], title='Enumeration and Chronology',
     default_order='desc'
 )
 RECORDS_REST_SORT_OPTIONS['items']['library'] = dict(
@@ -2509,7 +2509,7 @@ def _(x):
 )
 
 RECORDS_REST_DEFAULT_SORT['items'] = dict(
-    query='bestmatch', noquery='enum_chronology')
+    query='bestmatch', noquery='enumeration_chronology')
 
 # ------ ITEM TYPES SORT
 RECORDS_REST_SORT_OPTIONS['item_types']['name'] = dict(
diff --git a/rero_ils/modules/items/mappings/v7/items/item-v0.0.1.json b/rero_ils/modules/items/mappings/v7/items/item-v0.0.1.json
index 1edb3a3791..5ee6b692cd 100644
--- a/rero_ils/modules/items/mappings/v7/items/item-v0.0.1.json
+++ b/rero_ils/modules/items/mappings/v7/items/item-v0.0.1.json
@@ -56,7 +56,14 @@
         }
       },
       "enumerationAndChronology": {
-        "type": "keyword"
+        "type": "keyword",
+        "fields": {
+          "sort": {
+            "type": "icu_collation_keyword",
+            "index": false,
+            "numeric": true
+          }
+        }
       },
       "location": {
         "properties": {