@@ -80,11 +80,11 @@
  */
 + (instancetype)archiveWithPath: (OFString *)path
 			   mode: (OFString *)mode;
 #endif
 
-- init OF_UNAVAILABLE;
+- (instancetype)init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated OFZIPArchive object with the
  *	  specified stream.
  *
@@ -93,12 +93,12 @@
  * @param mode The mode for the ZIP file. Valid modes are "r" for reading,
  *	       "w" for creating a new file and "a" for appending to an existing
  *	       archive.
  * @return An initialized OFZIPArchive
  */
-- initWithStream: (OF_KINDOF(OFStream *))stream
-	    mode: (OFString *)mode OF_DESIGNATED_INITIALIZER;
+- (instancetype)initWithStream: (OF_KINDOF(OFStream *))stream
+			  mode: (OFString *)mode OF_DESIGNATED_INITIALIZER;
 
 #ifdef OF_HAVE_FILES
 /*!
  * @brief Initializes an already allocated OFZIPArchive object with the
  *	  specified file.
@@ -107,12 +107,12 @@
  * @param mode The mode for the ZIP file. Valid modes are "r" for reading,
  *	       "w" for creating a new file and "a" for appending to an existing
  *	       archive.
  * @return An initialized OFZIPArchive
  */
-- initWithPath: (OFString *)path
-	  mode: (OFString *)mode;
+- (instancetype)initWithPath: (OFString *)path
+			mode: (OFString *)mode;
 #endif
 
 /*!
  * @brief Returns the entries of the central directory of the archive as an
  * 	  array of objects of class @ref OFZIPArchiveEntry.