diff --git a/usr.sbin/nandtool/nand_read.c b/usr.sbin/nandtool/nand_read.c
index d84d424a5094..395b0c3fa7f5 100644
--- a/usr.sbin/nandtool/nand_read.c
+++ b/usr.sbin/nandtool/nand_read.c
@@ -52,7 +52,7 @@ int nand_read(struct cmd_param *params)
 	}
 
 	if ((out = param_get_string(params, "out"))) {
-		out_fd = open(out, O_WRONLY|O_CREAT);
+		out_fd = open(out, O_WRONLY|O_CREAT, 0666);
 		if (out_fd == -1) {
 			perrorf("Cannot open %s for writing", out);
 			return (1);
diff --git a/usr.sbin/nandtool/nand_readoob.c b/usr.sbin/nandtool/nand_readoob.c
index 6d253f9db53d..6c5bb372c3e0 100644
--- a/usr.sbin/nandtool/nand_readoob.c
+++ b/usr.sbin/nandtool/nand_readoob.c
@@ -59,7 +59,7 @@ int nand_read_oob(struct cmd_param *params)
 	}
 
 	if ((out = param_get_string(params, "out"))) {
-		if ((fd_out = open(out, O_WRONLY | O_CREAT)) == -1) {
+		if ((fd_out = open(out, O_WRONLY | O_CREAT, 0666)) == -1) {
 			perrorf("Cannot open %s", out);
 			ret = 1;
 			goto out;