diff --git a/net/nfs.c b/net/nfs.c
index 537d4c62de2..7bae7c78642 100644
--- a/net/nfs.c
+++ b/net/nfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * NFS support driver - based on etherboot and U-BOOT's tftp.c
  *