diff --git a/Makefile b/Makefile
index 5da0012..1d1532b 100644
--- a/Makefile
+++ b/Makefile
@@ -25,3 +25,6 @@ $(AS):
 
 clean:
 	rm -f $(PROG) $(ROM) $(OBJS)
+	make -C $(V6502_PREFIX) clean
+
+include v6502/libtargets.mk
diff --git a/v6502 b/v6502
index 6ec0220..304c267 160000
--- a/v6502
+++ b/v6502
@@ -1 +1 @@
-Subproject commit 6ec02209b776e65ccb85eca6da65c54b554ac9d0
+Subproject commit 304c2670e431aed08253a75ece07e6d65c00679d