diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index acfc3ce6859ad4cd5add52b1c35b9dd4799557a6..309d2ad67e4d6ee3d7c8c844506b5ae8bd92b24d 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -41,6 +41,7 @@ endif
 
 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o
 
+extra-y += ashldi3.c bswapsi.c
 $(obj)/ashldi3.o $(obj)/bswapsi.o: KBUILD_CFLAGS += -I$(srctree)/arch/mips/lib
 $(obj)/ashldi3.c $(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c
 	$(call cmd,shipped)