diff --git a/invenio_vocabularies/contrib/affiliations/config.py b/invenio_vocabularies/contrib/affiliations/config.py
index dd932dfa..e7de1d7f 100644
--- a/invenio_vocabularies/contrib/affiliations/config.py
+++ b/invenio_vocabularies/contrib/affiliations/config.py
@@ -26,10 +26,7 @@ class AffiliationsSearchOptions(SearchOptions):
     """Search options."""
 
     suggest_parser_cls = SuggestQueryParser.factory(
-        fields=[
-            "name^100",
-            "acronym^20",
-        ],
+        fields=["name^100", "acronym^20", "id^20"],
     )
 
     sort_default = "bestmatch"