@@ -53,20 +53,20 @@
  * @return A new, autoreleased OFMessagePackRepresentation
  */
 + (instancetype)extensionWithType: (int8_t)type
 			     data: (OFData *)data;
 
-- init OF_UNAVAILABLE;
+- (instancetype)init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated OFMessagePackRepresentation with the
  *	  specified type and data.
  *
  * @param type The MessagePack extension type
  * @param data The data for the extension
  * @return An initialized OFMessagePackRepresentation
  */
-- initWithType: (int8_t)type
-	  data: (OFData *)data OF_DESIGNATED_INITIALIZER;
+- (instancetype)initWithType: (int8_t)type
+			data: (OFData *)data OF_DESIGNATED_INITIALIZER;
 @end
 
 OF_ASSUME_NONNULL_END