diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 085269e..53f3cf6 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -837,6 +837,8 @@
 		if (!opts->numtail)
 			seq_puts(m, ",nonumtail");
 	}
+	if (sbi->options.flush)
+		seq_puts(m, ",flush");
 
 	return 0;
 }