diff --git a/api/funkwhale_api/instance/views.py b/api/funkwhale_api/instance/views.py
index 3272a95d8..f87704452 100644
--- a/api/funkwhale_api/instance/views.py
+++ b/api/funkwhale_api/instance/views.py
@@ -171,6 +171,9 @@ class NodeInfo21(NodeInfo20):
         if pref.get("federation__enabled"):
             data["features"].append("federation")
 
+        if pref.get("music__only_allow_musicbrainz_tagged_files"):
+            data["features"].append("onlyMbidTaggedContent")
+
         serializer = self.serializer_class(data)
         return Response(
             serializer.data, status=200, content_type=NODEINFO_2_CONTENT_TYPE
diff --git a/docs/specs/nodeinfo21/schema.yml b/docs/specs/nodeinfo21/schema.yml
index e454b24c0..58035c2db 100644
--- a/docs/specs/nodeinfo21/schema.yml
+++ b/docs/specs/nodeinfo21/schema.yml
@@ -580,6 +580,8 @@ components:
                 - "audiobooks"
                 - "federation"
                 - "anonymousCanListen"
+                - "onlyMbidTaggedContent"
+
     Error:
       type: object
       properties: