@@ -14,10 +14,12 @@
  * file.
  */
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFUnknownXMLEntityException \
  *	  OFUnknownXMLEntityException.h ObjFW/OFUnknownXMLEntityException.h
  *
  * @brief An exception indicating that a parser encountered an unknown XML
@@ -47,5 +49,7 @@
  * @param entityName The name of the unknown XML entity
  * @return An initialized unknown XML entity exception
  */
 - initWithEntityName: (OFString*)entityName;
 @end
+
+OF_ASSUME_NONNULL_END