diff --git a/board/prodrive/p3p440/Makefile b/board/prodrive/p3p440/Makefile
index a47a067..261e5d4 100644
--- a/board/prodrive/p3p440/Makefile
+++ b/board/prodrive/p3p440/Makefile
@@ -33,7 +33,7 @@
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
 $(LIB):	$(OBJS) $(SOBJS)
-	$(AR) crv $@ $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
 
 clean:
 	rm -f $(SOBJS) $(OBJS)