@@ -77,11 +77,11 @@
  *	  specified seekable stream.
  *
  * @param stream A seekable stream from which the ZIP archive will be read
  * @return An initialized OFZIPArchive
  */
-- initWithSeekableStream: (OFSeekableStream *)stream;
+- initWithSeekableStream: (OFSeekableStream *)stream OF_DESIGNATED_INITIALIZER;
 
 #ifdef OF_HAVE_FILES
 /*!
  * @brief Initializes an already allocated OFZIPArchive object with the
  *	  specified file.