diff --git a/cmds-inspect-dump-super.c b/cmds-inspect-dump-super.c
index 3e09ee8c..38e99ec1 100644
--- a/cmds-inspect-dump-super.c
+++ b/cmds-inspect-dump-super.c
@@ -511,7 +511,7 @@ int cmd_inspect_dump_super(int argc, char **argv)
 
 	for (i = optind; i < argc; i++) {
 		filename = argv[i];
-		fd = open(filename, O_RDONLY, 0666);
+		fd = open(filename, O_RDONLY);
 		if (fd < 0) {
 			error("cannot open %s: %s", filename, strerror(errno));
 			ret = 1;
diff --git a/super-recover.c b/super-recover.c
index 1dc3fc7d..635e804b 100644
--- a/super-recover.c
+++ b/super-recover.c
@@ -138,7 +138,7 @@ read_dev_supers(char *filename, struct btrfs_recover_superblock *recover)
 
 	struct btrfs_super_block *sb = (struct btrfs_super_block *)buf;
 
-	fd = open(filename, O_RDONLY, 0666);
+	fd = open(filename, O_RDONLY);
 	if (fd < 0)
 		return -errno;