@@ -60,11 +60,11 @@
  */
 + (instancetype)exceptionWithObject: (id)object
 		    requestedLength: (size_t)requestedLength
 			      errNo: (int)errNo;
 
-- init OF_UNAVAILABLE;
+- (instancetype)init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated read or write failed exception.
  *
  * @param object The object from which reading or to which writing failed
@@ -71,11 +71,11 @@
  * @param requestedLength The requested length of the data that could not be
  *			  read / written
  * @param errNo The errno of the error that occurred
  * @return A new open file failed exception
  */
--  initWithObject: (id)object
-  requestedLength: (size_t)requestedLength
-	    errNo: (int)errNo OF_DESIGNATED_INITIALIZER;
+- (instancetype)initWithObject: (id)object
+	       requestedLength: (size_t)requestedLength
+			 errNo: (int)errNo OF_DESIGNATED_INITIALIZER;
 @end
 
 OF_ASSUME_NONNULL_END