@@ -16,10 +16,12 @@
 
 #include <sys/types.h>
 
 #import "OFException.h"
 
+OF_ASSUME_NONNULL_BEGIN
+
 /*!
  * @class OFChangePermissionsFailedException \
  *	  OFChangePermissionsFailedException.h \
  *	  ObjFW/OFChangePermissionsFailedException.h
  *
@@ -70,5 +72,7 @@
  */
 - initWithPath: (OFString*)path
    permissions: (mode_t)permissions
 	 errNo: (int)errNo;
 @end
+
+OF_ASSUME_NONNULL_END