diff --git a/board/AndesTech/adp-ag102/Makefile b/board/AndesTech/adp-ag102/Makefile
index ec67dd04b0..6c187190b2 100644
--- a/board/AndesTech/adp-ag102/Makefile
+++ b/board/AndesTech/adp-ag102/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= adp-ag102.o
+COBJS-y	:= adp-ag102.o
 
 SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS-y) $(SOBJS-y))