diff --git a/config/monitoring/generic/site.json b/config/monitoring/generic/site.json
index ee8c2ad33..e60d5d67a 100644
--- a/config/monitoring/generic/site.json
+++ b/config/monitoring/generic/site.json
@@ -47,14 +47,8 @@
       "required": true
     },
     "id_sites_group": {
-      "type_widget": "datalist",
-      "attribut_label": "Groupe de sites",
-      "hidden": true,
-      "type_util": "sites_group",
-      "keyValue": "id_sites_group",
-      "keyLabel": "sites_group_name",
-      "api": "__MONITORINGS_PATH/list/__MODULE.MODULE_CODE/sites_group?id_module=__MODULE.ID_MODULE",
-      "application": "GeoNature"
+      "type_widget": "text",
+      "hidden": true
     },
     "id_nomenclature_type_site": {
       "type_widget": "datalist",
diff --git a/contrib/sites_group_aside/site.json b/contrib/sites_group_aside/site.json
index 8c74e1c42..42982063b 100644
--- a/contrib/sites_group_aside/site.json
+++ b/contrib/sites_group_aside/site.json
@@ -1,6 +1,17 @@
 {
   "geometry_type": "Point",
   "specific": {
+    "id_sites_group": {
+      "type_widget": "datalist",
+      "attribut_label": "Groupe de sites",
+      "hidden": true,
+      "type_util": "sites_group",
+      "keyValue": "id_sites_group",
+      "keyLabel": "sites_group_name",
+      "api": "__MONITORINGS_PATH/list/__MODULE.MODULE_CODE/sites_group?id_module=__MODULE.ID_MODULE",
+      "application": "GeoNature",
+      "required": false
+    },
     "id_nomenclature_type_site": {
       "type_widget": "datalist",
       "attribut_label": "Type site",