diff --git a/app/routes/workflows.py b/app/routes/workflows.py
index ea88e7d..cdbd805 100644
--- a/app/routes/workflows.py
+++ b/app/routes/workflows.py
@@ -183,7 +183,6 @@ async def create_instance(
             workflow_id=workflow_id,
             context=body.context,
             timeout_hours=body.timeout_hours,
-            is_system_admin=is_admin,
         )
     except PermissionError as e:
         raise HTTPException(status_code=403, detail=str(e)) from e