@@ -14,10 +14,12 @@
  * file.
  */
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFCreateDirectoryFailedException \
  *	  OFCreateDirectoryFailedException.h \
  *	  ObjFW/OFCreateDirectoryFailedException.h
  *
@@ -59,5 +61,7 @@
  * @return An initialized create directory failed exception
  */
 - initWithPath: (OFString*)path
 	 errNo: (int)errNo;
 @end
+
+OF_ASSUME_NONNULL_END