@@ -47,16 +47,16 @@
 @property (readonly, nonatomic) OFString *host;
 
 /*!
  * The port on the host to which the connection failed.
  */
-@property (readonly) uint16_t port;
+@property (readonly, nonatomic) uint16_t port;
 
 /*!
  * The errno of the error that occurred.
  */
-@property (readonly) int errNo;
+@property (readonly, nonatomic) int errNo;
 
 + (instancetype)exception OF_UNAVAILABLE;
 
 /*!
  * @brief Creates a new, autoreleased connection failed exception.