diff --git a/src/mame/drivers/alesis_qs.cpp b/src/mame/drivers/alesis_qs.cpp
index 61215c782ad..019f9cfc585 100644
--- a/src/mame/drivers/alesis_qs.cpp
+++ b/src/mame/drivers/alesis_qs.cpp
@@ -42,7 +42,7 @@ static INPUT_PORTS_START( qs7 )
 INPUT_PORTS_END
 
 static ADDRESS_MAP_START( qs7_prog_map, AS_PROGRAM, 16, qs_state )
-	ADDRESS_MAP_GLOBAL_MASK(0x3ffff)
+	//ADDRESS_MAP_GLOBAL_MASK(0x3ffff)
 	AM_RANGE(0x00000, 0x3ffff) AM_ROM
 ADDRESS_MAP_END
 
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index d0e2aefdf3c..c73ca3816cb 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -936,6 +936,9 @@ hr16b                           //
 mmt8                            //
 sr16                            //
 
+@source:alesis_qs.cpp
+alesqs7                         //
+
 @source:alg.cpp
 alg_bios                        //
 aplatoon                        // (c) 199? Nova?