@@ -48,10 +48,12 @@
 /*!
  * The errno of the error that occurred.
  */
 @property (readonly) int errNo;
 
++ (instancetype)exception OF_UNAVAILABLE;
+
 /*!
  * @brief Creates a new, autoreleased change owner failed exception.
  *
  * @param path The path of the item
  * @param owner The new owner for the item
@@ -61,10 +63,12 @@
  */
 + (instancetype)exceptionWithPath: (OFString *)path
 			    owner: (nullable OFString *)owner
 			    group: (nullable OFString *)group
 			    errNo: (int)errNo;
+
+- init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated change owner failed exception.
  *
  * @param path The path of the item