diff --git a/arch/nds32/boot/dts/Makefile b/arch/nds32/boot/dts/Makefile
index fff8ade7a84f..f84bd529b6fd 100644
--- a/arch/nds32/boot/dts/Makefile
+++ b/arch/nds32/boot/dts/Makefile
@@ -5,5 +5,3 @@ else
 BUILTIN_DTB :=
 endif
 obj-$(CONFIG_OF) += $(BUILTIN_DTB)
-
-clean-files := *.dtb *.dtb.S