@@ -25,11 +25,11 @@
  */
 @interface OFSHA224Or256Hash: OFObject <OFCryptoHash>
 {
 	uint32_t _state[8];
 	uint64_t _bits;
-	union {
+	union of_sha_224_or_256_hash_buffer {
 		uint8_t bytes[64];
 		uint32_t words[64];
 	} _buffer;
 	size_t _bufferLength;
 	bool _calculated;