@@ -20,21 +20,21 @@
 #import "OFString.h"
 
 @implementation OFHashAlreadyCalculatedException
 @synthesize object = _object;
 
-+ (instancetype)exceptionWithObject: (id <OFCryptoHash>)object
++ (instancetype)exceptionWithObject: (id)object
 {
 	return [[[self alloc] initWithObject: object] autorelease];
 }
 
 - init
 {
 	OF_INVALID_INIT_METHOD
 }
 
-- initWithObject: (id <OFCryptoHash>)object
+- initWithObject: (id)object
 {
 	self = [super init];
 
 	_object = [object retain];