@@ -14,21 +14,20 @@
  */
 
 #import "OFObject.h"
 #import "OFJSONRepresentation.h"
 #import "OFMessagePackRepresentation.h"
-#import "OFSerialization.h"
 
 OF_ASSUME_NONNULL_BEGIN
 
 /**
  * @class OFNull OFNull.h ObjFW/OFNull.h
  *
  * @brief A class for representing null values in collections.
  */
 OF_SUBCLASSING_RESTRICTED
-@interface OFNull: OFObject <OFCopying, OFSerialization, OFJSONRepresentation,
+@interface OFNull: OFObject <OFCopying, OFJSONRepresentation,
     OFMessagePackRepresentation>
 /**
  * @brief Returns an OFNull singleton.
  *
  * @return An OFNull singleton