diff --git a/tools/tests/zasm/test6.asm b/tools/tests/zasm/test6.asm
index 8bb4ca7..0328e6c 100644
--- a/tools/tests/zasm/test6.asm
+++ b/tools/tests/zasm/test6.asm
@@ -6,3 +6,7 @@
 #include "parse.asm"
 .equ	ACIA_RAMSTART	RAMSTART
 #include "acia.asm"
+
+.equ	BLOCKDEV_RAMSTART	ACIA_RAMEND
+.equ	BLOCKDEV_COUNT		1
+#include "blockdev.asm"