diff --git a/invenio_rdm_records/resources/serializers/signposting/__init__.py b/invenio_rdm_records/resources/serializers/signposting/__init__.py
index 66689ae3f..93404b76f 100644
--- a/invenio_rdm_records/resources/serializers/signposting/__init__.py
+++ b/invenio_rdm_records/resources/serializers/signposting/__init__.py
@@ -35,6 +35,8 @@ def fair_signposting_tostring(cls, record):
                 link = f'<{value["href"]}> ; rel="{rel}"'
                 if "type" in value:
                     link += f' ; type="{value["type"]}"'
+                if "profile" in value:
+                    link += f' ; profile="{value["profile"]}"'
                 links.append(link)
         return " , ".join(links)
 
diff --git a/invenio_rdm_records/resources/serializers/signposting/schema.py b/invenio_rdm_records/resources/serializers/signposting/schema.py
index f3e9d0a80..d00e1effd 100644
--- a/invenio_rdm_records/resources/serializers/signposting/schema.py
+++ b/invenio_rdm_records/resources/serializers/signposting/schema.py
@@ -69,12 +69,20 @@ def serialize_describedby(self, obj, **kwargs):
         # Has to be placed here to prevent circular dependency.
         from invenio_rdm_records.resources.config import record_serializers
 
-        result = [
-            {"href": obj["links"]["self"], "type": mimetype}
-            for mimetype in sorted(record_serializers)
+        result = []
+        for mimetype in sorted(record_serializers):
             # Remove the linkset serializer, so that the linkset does not link to itself.
-            if mimetype != "application/linkset+json"
-        ]
+            if mimetype == "application/linkset+json":
+                continue
+            if ";" in mimetype:
+                media_type, _, params = mimetype.partition(";")
+                entry = {"href": obj["links"]["self"], "type": media_type.strip()}
+                params = params.strip()
+                if params.startswith('profile="') and params.endswith('"'):
+                    entry["profile"] = params[len('profile="'):-1]
+            else:
+                entry = {"href": obj["links"]["self"], "type": mimetype}
+            result.append(entry)
 
         return result or missing
 
diff --git a/tests/resources/serializers/test_signposting_serializer.py b/tests/resources/serializers/test_signposting_serializer.py
index 5fe66f0f4..602873c68 100644
--- a/tests/resources/serializers/test_signposting_serializer.py
+++ b/tests/resources/serializers/test_signposting_serializer.py
@@ -131,7 +131,8 @@ def test_signposting_serializer_full(
                     },
                     {
                         "href": "https://127.0.0.1:5000/api/records/12345-abcde",
-                        "type": 'application/ld+json;profile="https://datapackage.org/profiles/2.0/datapackage.json"',
+                        "type": "application/ld+json",
+                        "profile": "https://datapackage.org/profiles/2.0/datapackage.json",
                     },
                     {
                         "href": "https://127.0.0.1:5000/api/records/12345-abcde",
@@ -326,7 +327,7 @@ def test_signposting_lvl1_serializer_full_collections_size_ok(
         f'<{api_url}> ; rel="describedby" ; type="application/dcat+xml"',
         f'<{api_url}> ; rel="describedby" ; type="application/json"',
         f'<{api_url}> ; rel="describedby" ; type="application/ld+json"',
-        f'<{api_url}> ; rel="describedby" ; type="application/ld+json;profile="https://datapackage.org/profiles/2.0/datapackage.json""',
+        f'<{api_url}> ; rel="describedby" ; type="application/ld+json" ; profile="https://datapackage.org/profiles/2.0/datapackage.json"',
         f'<{api_url}> ; rel="describedby" ; type="application/marcxml+xml"',
         f'<{api_url}> ; rel="describedby" ; type="application/vnd.citationstyles.csl+json"',
         f'<{api_url}> ; rel="describedby" ; type="application/vnd.datacite.datacite+json"',
@@ -383,7 +384,8 @@ def test_signposting_serializer_minimal(running_app, minimal_record_to_dict):
                     },
                     {
                         "href": "https://127.0.0.1:5000/api/records/67890-fghij",
-                        "type": 'application/ld+json;profile="https://datapackage.org/profiles/2.0/datapackage.json"',
+                        "type": "application/ld+json",
+                        "profile": "https://datapackage.org/profiles/2.0/datapackage.json",
                     },
                     {
                         "href": "https://127.0.0.1:5000/api/records/67890-fghij",
@@ -464,7 +466,7 @@ def test_signposting_lvl1_serializer_minimal(running_app, minimal_record_to_dict
         f'<{api_url}> ; rel="describedby" ; type="application/dcat+xml"',
         f'<{api_url}> ; rel="describedby" ; type="application/json"',
         f'<{api_url}> ; rel="describedby" ; type="application/ld+json"',
-        f'<{api_url}> ; rel="describedby" ; type="application/ld+json;profile="https://datapackage.org/profiles/2.0/datapackage.json""',
+        f'<{api_url}> ; rel="describedby" ; type="application/ld+json" ; profile="https://datapackage.org/profiles/2.0/datapackage.json"',
         f'<{api_url}> ; rel="describedby" ; type="application/marcxml+xml"',
         f'<{api_url}> ; rel="describedby" ; type="application/vnd.citationstyles.csl+json"',
         f'<{api_url}> ; rel="describedby" ; type="application/vnd.datacite.datacite+json"',