@@ -14,10 +14,12 @@
  * file.
  */
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFMemoryNotPartOfObjectException \
  *	  OFMemoryNotPartOfObjectException.h \
  *	  ObjFW/OFMemoryNotPartOfObjectException.h
  *
@@ -57,5 +59,7 @@
  * @return An initialized memory not part of object exception
  */
 - initWithPointer: (void*)pointer
 	   object: (id)object;
 @end
+
+OF_ASSUME_NONNULL_END