@@ -36,13 +36,13 @@
 	id <OFCryptoHash> hash = [class cryptoHash];
 	size_t digestSize = [class digestSize];
 	const unsigned char *digest;
 	char cString[digestSize * 2];
 
-	[hash updateWithBuffer: [self UTF8String]
-			length: [self UTF8StringLength]];
-	digest = [hash digest];
+	[hash updateWithBuffer: self.UTF8String
+			length: self.UTF8StringLength];
+	digest = hash.digest;
 
 	for (size_t i = 0; i < digestSize; i++) {
 		uint8_t high, low;
 
 		high = digest[i] >> 4;