diff --git a/usr.bin/dtc/fdt.cc b/usr.bin/dtc/fdt.cc
index 7810c0d3c7a7..b2405efab52e 100644
--- a/usr.bin/dtc/fdt.cc
+++ b/usr.bin/dtc/fdt.cc
@@ -1181,7 +1181,7 @@ void
 device_tree::write_dts(int fd)
 {
 	FILE *file = fdopen(fd, "w");
-	fputs("/dtc-v1/;\n\n", file);
+	fputs("/dts-v1/;\n\n", file);
 
 	if (!reservations.empty())
 	{