diff --git a/include/configs/walnut.h b/include/configs/walnut.h
index b23824b..a569182 100644
--- a/include/configs/walnut.h
+++ b/include/configs/walnut.h
@@ -2,7 +2,7 @@
  * (C) Copyright 2000-2005
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*