diff --git a/server/belga/search_providers.py b/server/belga/search_providers.py
index 6479b64f..bddbfeee 100644
--- a/server/belga/search_providers.py
+++ b/server/belga/search_providers.py
@@ -513,6 +513,7 @@ def format_list_item(self, data):
         guid = "%s%d" % (self.GUID_PREFIX, data["newsObjectId"])
         formatted_data = {
             "type": self.get_type(data.get("assetType", "text")),
+            "_type": "externalsource",
             "mimetype": f"application/superdesk.item.{self.get_type(data.get('assetType', 'text'))}",
             "pubstatus": "usable",
             "_id": guid,