@@ -191,11 +191,11 @@
  * @brief Initializes an already allocated thread with the specified block.
  *
  * @param threadBlock A block which is executed by the thread
  * @return An initialized OFThread.
  */
-- initWithThreadBlock: (of_thread_block_t)threadBlock;
+- (instancetype)initWithThreadBlock: (of_thread_block_t)threadBlock;
 # endif
 
 /*!
  * @brief The main routine of the thread. You need to reimplement this!
  *
@@ -268,10 +268,10 @@
  *
  * @param stackSize The stack size for the thread
  */
 - (void)setStackSize: (size_t)stackSize;
 #else
-- init OF_UNAVAILABLE;
+- (instancetype)init OF_UNAVAILABLE;
 #endif
 @end
 
 OF_ASSUME_NONNULL_END