diff --git a/src/emu/bus/msx_slot/ram.h b/src/emu/bus/msx_slot/ram.h
index 3a2b0a936f9..a861d0697b6 100644
--- a/src/emu/bus/msx_slot/ram.h
+++ b/src/emu/bus/msx_slot/ram.h
@@ -5,12 +5,19 @@
 
 #define MCFG_MSX_SLOT_RAM_ADD(_tag, _startpage, _numpages) \
 	MCFG_MSX_INTERNAL_SLOT_ADD(_tag, MSX_SLOT_RAM, _startpage, _numpages)
+
+#define MCFG_MSX_SLOT_RAM_8KB \
+	msx_slot_ram_device::force_start_address(*device, 0xe000);
+
+
 class msx_slot_ram_device : public device_t,
 							public msx_internal_slot_interface
 {
 public:
 	msx_slot_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
 
+	static void force_start_address(device_t &device, UINT16 start) { downcast<msx_slot_ram_device &>(device).m_start_address = start; }
+
 	virtual void device_start();
 
 	virtual DECLARE_READ8_MEMBER(read);
@@ -20,6 +27,8 @@ private:
 	dynamic_array<UINT8> m_ram;
 };
 
+
 extern const device_type MSX_SLOT_RAM;
 
+
 #endif