@@ -14,13 +14,17 @@
  * file.
  */
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFOutOfRangeException \
  *	  OFOutOfRangeException.h ObjFW/OFOutOfRangeException.h
  *
  * @brief An exception indicating the given value is out of range.
  */
 @interface OFOutOfRangeException: OFException
 @end
+
+OF_ASSUME_NONNULL_END