diff --git a/config/sync/search_api.index.autocomplete.yml b/config/sync/search_api.index.autocomplete.yml
index f99fc21..c26c079 100644
--- a/config/sync/search_api.index.autocomplete.yml
+++ b/config/sync/search_api.index.autocomplete.yml
@@ -73,6 +73,14 @@ field_settings:
     dependencies:
       module:
         - taxonomy
+  parent:
+    label: 'Parents du terme'
+    datasource_id: 'entity:taxonomy_term'
+    property_path: parent
+    type: integer
+    dependencies:
+      module:
+        - taxonomy
   status:
     label: Published
     datasource_id: 'entity:taxonomy_term'
@@ -97,6 +105,14 @@ field_settings:
     dependencies:
       module:
         - taxonomy
+  vid:
+    label: Vocabulaire
+    datasource_id: 'entity:taxonomy_term'
+    property_path: vid
+    type: string
+    dependencies:
+      module:
+        - taxonomy
 datasource_settings:
   'entity:taxonomy_term':
     bundles:
@@ -113,6 +129,7 @@ processor_settings:
   add_url: {  }
   aggregated_field: {  }
   entity_status: {  }
+  entity_type: {  }
   language_with_fallback: {  }
   rendered_item: {  }
   solr_date_range:
diff --git a/web/modules/custom/materio_sapi/src/Controller/FormAutocomplete.php b/web/modules/custom/materio_sapi/src/Controller/FormAutocomplete.php
index c03c3c3..217adda 100644
--- a/web/modules/custom/materio_sapi/src/Controller/FormAutocomplete.php
+++ b/web/modules/custom/materio_sapi/src/Controller/FormAutocomplete.php
@@ -54,6 +54,21 @@ class FormAutocomplete extends ControllerBase {
       // Add sorting.
       $query->sort('search_api_relevance', 'DESC');
 
+      // remove thesaurus tags without parents (main categories)
+      $parents_conditions = $query->createConditionGroup('OR');
+      // tags
+      $tags_conditions = $query->createConditionGroup('AND');
+      $tags_conditions->addCondition('vid', 'tags');
+      $parents_conditions->addConditionGroup($tags_conditions);      
+      // OR thesaurus & has parent
+      $thesaurus_conditions = $query->createConditionGroup('AND');
+      $thesaurus_conditions->addCondition('vid', 'thesaurus');
+      $thesaurus_conditions->addCondition('parent', 0, '<>');
+      $parents_conditions->addConditionGroup($thesaurus_conditions);      
+      
+      $query->addConditionGroup($parents_conditions);
+
+
       // Set one or more tags for the query.
       // @see hook_search_api_query_TAG_alter()
       // @see hook_search_api_results_TAG_alter()