diff --git a/swh/indexer/tests/storage/test_storage.py b/swh/indexer/tests/storage/test_storage.py
--- a/swh/indexer/tests/storage/test_storage.py
+++ b/swh/indexer/tests/storage/test_storage.py
@@ -1584,7 +1584,8 @@
         assert result == {
             "per_mapping": {
                 "cff": 0,
-                "description" "gemspec": 1,
+                "description": 0,
+                "gemspec": 1,
                 "npm": 2,
                 "pkg-info": 1,
                 "codemeta": 0,