@@ -14,14 +14,18 @@
  * file.
  */
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFTruncatedDataException \
  *	  OFTruncatedDataException.h ObjFW/OFTruncatedDataException.h
  *
  * @brief An exception indicating that data was truncated while it should not
  *	  have been truncated.
  */
 @interface OFTruncatedDataException: OFException
 @end
+
+OF_ASSUME_NONNULL_END