@@ -31,11 +31,12 @@
 
 @implementation OFString (CryptoHashing)
 - (OFString *)of_cryptoHashWithClass: (Class <OFCryptoHash>)class
 {
 	void *pool = objc_autoreleasePoolPush();
-	id <OFCryptoHash> hash = [class cryptoHash];
+	id <OFCryptoHash> hash = [class
+	    cryptoHashWithAllowsSwappableMemory: true];
 	size_t digestSize = [class digestSize];
 	const unsigned char *digest;
 	char cString[digestSize * 2];
 
 	[hash updateWithBuffer: self.UTF8String