diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile
index 581a2e7..705e1ff 100644
--- a/arch/nds32/lib/Makefile
+++ b/arch/nds32/lib/Makefile
@@ -29,7 +29,8 @@
 
 LIB	= $(obj)lib$(ARCH).o
 
-OBJS	:= board.o bootm.o cache.o interrupts.o
+OBJS	:= board.o cache.o interrupts.o
+COBJS-$(CONFIG_CMD_BOOTM) += bootm.o
 
 all:	$(LIB)