@@ -34,11 +34,11 @@
 @interface OFInflate64Stream: OFStream <OFReadyForReadingObserving>
 {
 #ifdef OF_INFLATE64_STREAM_M
 @public
 #endif
-	OF_KINDOF(OFStream *) _stream;
+	OFStream *_stream;
 	unsigned char _buffer[OF_INFLATE64_STREAM_BUFFER_SIZE];
 	uint16_t _bufferIndex, _bufferLength;
 	uint8_t _byte;
 	uint8_t _bitIndex, _savedBitsLength;
 	uint16_t _savedBits;
@@ -79,11 +79,11 @@
  *
  * @param stream The underlying stream to which compressed data is written or
  *		 from which compressed data is read
  * @return A new, autoreleased OFInflate64Stream
  */
-+ (instancetype)streamWithStream: (OF_KINDOF(OFStream *))stream;
++ (instancetype)streamWithStream: (OFStream *)stream;
 
 - (instancetype)init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated OFInflate64Stream with the specified
@@ -91,10 +91,9 @@
  *
  * @param stream The underlying stream to which compressed data is written or
  *		 from which compressed data is read
  * @return A initialized OFInflate64Stream
  */
-- (instancetype)initWithStream: (OF_KINDOF(OFStream *))stream
-    OF_DESIGNATED_INITIALIZER;
+- (instancetype)initWithStream: (OFStream *)stream OF_DESIGNATED_INITIALIZER;
 @end
 
 OF_ASSUME_NONNULL_END