@@ -79,11 +79,11 @@
 
 #ifdef OF_HAVE_BLOCKS
 /*!
  * The block to execute in the thread.
  */
-@property (readonly, copy) of_thread_block_t threadBlock;
+@property (readonly, nonatomic) of_thread_block_t threadBlock;
 #endif
 
 /*!
  * @brief Creates a new thread.
  *