diff --git a/apps/search_indexes/views.py b/apps/search_indexes/views.py
index a69caf1f..2b9f4e65 100644
--- a/apps/search_indexes/views.py
+++ b/apps/search_indexes/views.py
@@ -60,7 +60,10 @@ class EstablishmentDocumentViewSet(BaseDocumentViewSet):
         'description',
     )
     filter_fields = {
-        'tag': 'tags.id',
+        'tag': {
+            'field': 'tags.id',
+            'lookups': [constants.LOOKUP_QUERY_IN]
+        },
         'toque_number': {
             'field': 'toque_number',
             'lookups': [