@@ -14,10 +14,12 @@
  * file.
  */
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFInvalidJSONException \
  *	  OFInvalidJSONException.h ObjFW/OFInvalidJSONException.h
  *
  * @brief An exception indicating a JSON representation is invalid.
@@ -56,5 +58,7 @@
  * @return An initialized invalid JSON exception
  */
 - initWithString: (OFString*)string
 	    line: (size_t)line;
 @end
+
+OF_ASSUME_NONNULL_END