diff --git a/client/src/api/schema/schema.ts b/client/src/api/schema/schema.ts
index 6e5344c53c21..23baa4dc094e 100644
--- a/client/src/api/schema/schema.ts
+++ b/client/src/api/schema/schema.ts
@@ -13219,7 +13219,7 @@ export interface components {
             /** Update Time */
             update_time: string;
             /** Uploaded By */
-            uploaded_by: string;
+            uploaded_by: string | null;
             /** Uuid */
             uuid: string;
         } & {
diff --git a/lib/galaxy/schema/library_contents.py b/lib/galaxy/schema/library_contents.py
index 1af206f857a3..c692c062da26 100644
--- a/lib/galaxy/schema/library_contents.py
+++ b/lib/galaxy/schema/library_contents.py
@@ -214,7 +214,7 @@ class LibraryContentsShowDatasetResponse(LibraryContentsShowResponse):
     state: str
     file_name: str
     created_from_basename: Optional[str]
-    uploaded_by: str
+    uploaded_by: Optional[str]
     message: Optional[str]
     date_uploaded: str
     file_size: int