@@ -23,8 +23,11 @@
  *
  * @brief An exception indicating that data was truncated while it should not
  *	  have been truncated.
  */
 @interface OFTruncatedDataException: OFException
+{
+	OF_RESERVE_IVARS(OFTruncatedDataException, 4)
+}
 @end
 
 OF_ASSUME_NONNULL_END