diff --git a/swh/storage/migrate_extrinsic_metadata.py b/swh/storage/migrate_extrinsic_metadata.py
--- a/swh/storage/migrate_extrinsic_metadata.py
+++ b/swh/storage/migrate_extrinsic_metadata.py
@@ -181,6 +181,10 @@
         return "instancemanager"
     elif filename == "OrzMC_W&L-1.0.0.tar.gz":
         return "OrzMC-W-L"
+    elif filename == "use0mk.tar.gz":
+        return "use0mk"
+    elif filename == "play-0-develop-1-gd67cd85.tar.gz":
+        return "play"
     filename = filename.replace(" ", "-")
 
     match = re.match(
diff --git a/swh/storage/tests/migrate_extrinsic_metadata/test_pypi.py b/swh/storage/tests/migrate_extrinsic_metadata/test_pypi.py
--- a/swh/storage/tests/migrate_extrinsic_metadata/test_pypi.py
+++ b/swh/storage/tests/migrate_extrinsic_metadata/test_pypi.py
@@ -135,6 +135,8 @@
         ("ore.workflowed-0-6-2.tar.gz", "ore.workflowed"),
         ("instancemanager-1.0rc-r34317.tar.gz", "instancemanager"),
         ("OrzMC_W&L-1.0.0.tar.gz", "OrzMC-W-L"),
+        ("use0mk.tar.gz", "use0mk"),
+        ("play-0-develop-1-gd67cd85.tar.gz", "play"),
     ]
 
     for (filename, project) in files: