@@ -23,19 +23,19 @@
  *
  * @brief An exception indicating that setting an option for an object failed.
  */
 @interface OFSetOptionFailedException: OFException
 {
-	id _object;
+	id _Nullable _object;
 	int _errNo;
 	OF_RESERVE_IVARS(OFSetOptionFailedException, 4)
 }
 
 /**
  * @brief The object for which the option could not be set.
  */
-@property (readonly, nonatomic) id object;
+@property OF_NULLABLE_PROPERTY (readonly, nonatomic) id object;
 
 /**
  * @brief The errno of the error that occurred.
  */
 @property (readonly, nonatomic) int errNo;
@@ -45,11 +45,11 @@
  *
  * @param object The object for which the option could not be set
  * @param errNo The errno of the error that occurred
  * @return A new, autoreleased set option failed exception
  */
-+ (instancetype)exceptionWithObject: (id)object errNo: (int)errNo;
++ (instancetype)exceptionWithObject: (nullable id)object errNo: (int)errNo;
 
 + (instancetype)exception OF_UNAVAILABLE;
 
 /**
  * @brief Initializes an already allocated set option failed exception.
@@ -56,12 +56,12 @@
  *
  * @param object The object for which the option could not be set
  * @param errNo The errno of the error that occurred
  * @return An initialized set option failed exception
  */
-- (instancetype)initWithObject: (id)object
+- (instancetype)initWithObject: (nullable id)object
 			 errNo: (int)errNo OF_DESIGNATED_INITIALIZER;
 
 - (instancetype)init OF_UNAVAILABLE;
 @end
 
 OF_ASSUME_NONNULL_END