diff --git a/backend/app/repositories/models/conversation.py b/backend/app/repositories/models/conversation.py
index 5627f7df2..0ab1ed96a 100644
--- a/backend/app/repositories/models/conversation.py
+++ b/backend/app/repositories/models/conversation.py
@@ -648,7 +648,7 @@ def get_source_link_for_schema(self) -> str | None:
         if url.scheme == "s3":
             source_link = generate_presigned_url(
                 bucket=url.netloc,
-                key=url.path,
+                key=url.path.removeprefix("/"),
                 client_method="get_object",
             )
             return source_link