@@ -90,11 +90,11 @@
 #endif
 	id returnValue;
 }
 
 #if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
-@property (retain) of_thread_block_t block;
+@property (copy) of_thread_block_t block;
 #endif
 
 /**
  * \brief Creates a new thread.
  *