diff --git a/board/stxxtc/Makefile b/board/stxxtc/Makefile
index 807da06..b575e23 100644
--- a/board/stxxtc/Makefile
+++ b/board/stxxtc/Makefile
@@ -32,7 +32,7 @@
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
 $(LIB):	$(obj).depend $(OBJS)
-	$(AR) crv $@ $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
 
 $(obj)%.dtb: $(src)%.dts
 	dtc -f -V 0x10 -I dts -O dtb $< >$@