diff --git a/swh/indexer/metadata_dictionary/github.py b/swh/indexer/metadata_dictionary/github.py
--- a/swh/indexer/metadata_dictionary/github.py
+++ b/swh/indexer/metadata_dictionary/github.py
@@ -5,7 +5,7 @@
 import json
 from typing import Any, Dict, List, Tuple
 
-from swh.indexer.codemeta import ACTIVITYSTREAMS_URI, FORGEFED_URI, SCHEMA_URI
+from swh.indexer.codemeta import ACTIVITYSTREAMS_URI, CROSSWALK_TABLE, FORGEFED_URI
 from swh.indexer.storage.interface import Sha1
 
 from .base import DirectoryLsEntry, JsonMapping, produce_terms
@@ -17,11 +17,16 @@
 
 class GitHubMapping(JsonMapping):
     name = "github"
-    mapping = {
-        "name": SCHEMA_URI + "name",
-        "license": SCHEMA_URI + "license",
-    }
-    string_fields = ["name"]
+    mapping = CROSSWALK_TABLE["GitHub"]
+    string_fields = [
+        "archive_url",
+        "created_at",
+        "updated_at",
+        "description",
+        "full_name",
+        "html_url",
+        "issues_url",
+    ]
 
     @classmethod
     def detect_metadata_files(cls, file_entries: List[DirectoryLsEntry]) -> List[Sha1]:
diff --git a/swh/indexer/tests/metadata_dictionary/test_github.py b/swh/indexer/tests/metadata_dictionary/test_github.py
--- a/swh/indexer/tests/metadata_dictionary/test_github.py
+++ b/swh/indexer/tests/metadata_dictionary/test_github.py
@@ -118,5 +118,9 @@
             "type": "https://www.w3.org/ns/activitystreams#OrderedCollection",
         },
         "license": "https://spdx.org/licenses/GPL-3.0",
-        "name": "swh-indexer",
+        "name": "SoftwareHeritage/swh-indexer",
+        "description": "GitHub mirror of Metadata indexer",
+        "schema:codeRepository": "https://github.com/SoftwareHeritage/swh-indexer",
+        "schema:dateCreated": "2017-01-31T13:05:39Z",
+        "schema:dateModified": "2022-06-22T08:02:20Z",
     }