@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
+ * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
  *
  * All rights reserved.
  *
  * This file is part of ObjFW. It may be distributed under the terms of the
  * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
@@ -14,6 +14,7 @@
  */
 
 #import "OFSerialization.h"
 #import "OFString.h"
 
-OFString *const OFSerializationNS = @"https://objfw.nil.im/serialization";
+OFConstantString *const OFSerializationNS =
+    @"https://objfw.nil.im/serialization";