diff --git a/Memory/Blob.h b/Memory/Blob.h
index ee8184a..9cfc764 100644
--- a/Memory/Blob.h
+++ b/Memory/Blob.h
@@ -95,7 +95,7 @@ namespace Alepha::Hydrogen  ::detail::  Blob_m
 			~Blob() { reset(); }
 
 			using StorageReservation= IndirectStorage;
-			StorageReservation reservation() const { return storage; }
+			const StorageReservation &reservation() const { return storage; }
 
 			auto
 			swap_lens() noexcept