diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 9c5ea3bdfaa0..e70fccc3757e 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -5,7 +5,7 @@
 #include <uapi/linux/fanotify.h>
 
 /* not valid from userspace, only kernel internal */
-#define FAN_MARK_ONDIR		0x00000100
+#define FAN_MARK_ONDIR		0x80000000
 
 #define FAN_GROUP_FLAG(group, flag) \
 	((group)->fanotify_data.flags & (flag))