diff --git a/hypha/VERSION b/hypha/VERSION
index 69589c70..9d01d8af 100644
--- a/hypha/VERSION
+++ b/hypha/VERSION
@@ -1,3 +1,3 @@
 {
-    "version": "0.20.38.post9"
+    "version": "0.20.38.post10"
 }
diff --git a/hypha/artifact.py b/hypha/artifact.py
index 8ad6a13c..aebd1f99 100644
--- a/hypha/artifact.py
+++ b/hypha/artifact.py
@@ -205,6 +205,8 @@ async def _read_manifest(self, artifact, stage=False, increment_view_count=False
                     collection = []
                     for sub_artifact in sub_artifacts:
                         sub_manifest = sub_artifact.manifest
+                        if sub_manifest is None:
+                            continue
                         summary = {"_prefix": f"/{workspace}/{sub_artifact.prefix}"}
                         for field in summary_fields:
                             value = sub_manifest.get(field)
diff --git a/tests/test_artifact.py b/tests/test_artifact.py
index fc0ecd3f..546c0075 100644
--- a/tests/test_artifact.py
+++ b/tests/test_artifact.py
@@ -446,9 +446,19 @@ async def test_artifact_manager_with_collection(minio_server, fastapi_server):
     }
 
     await artifact_manager.create(
-        prefix="collections/test-collection", manifest=collection_manifest, stage=False
+        prefix="collections/test-collection",
+        manifest=collection_manifest,
+        stage=False,
+        permissions={"*": "r", "@": "r+"},
     )
 
+    # get the collection via http
+    response = requests.get(
+        f"{SERVER_URL}/{api.config.workspace}/artifacts/collections/test-collection"
+    )
+    assert response.status_code == 200
+    assert "test-collection" in response.json()["name"]
+
     # Ensure that the collection exists
     collections = await artifact_manager.list(prefix="collections")
     assert "test-collection" in collections