diff --git a/src/mame/drivers/saturn.c b/src/mame/drivers/saturn.c
index 0e4ecd5b28b..6356c09f324 100644
--- a/src/mame/drivers/saturn.c
+++ b/src/mame/drivers/saturn.c
@@ -3287,6 +3287,8 @@ ROM_START( sfish2 )
 
 	DISK_REGION( "cdrom" )
 	DISK_IMAGE( "sfish2", 0, SHA1(a10073d83bbbe16e16f69ad48565821576557d61) )
+
+	ROM_REGION32_BE( 0x3000000, "abus", ROMREGION_ERASE00 ) /* SH2 code */ \
 ROM_END
 
 ROM_START( sfish2j )
@@ -3305,6 +3307,8 @@ ROM_START( sfish2j )
 
 	DISK_REGION( "cdrom" )
 	DISK_IMAGE( "sfish2", 0, SHA1(a10073d83bbbe16e16f69ad48565821576557d61) )
+
+	ROM_REGION32_BE( 0x3000000, "abus", ROMREGION_ERASE00 ) /* SH2 code */ \
 ROM_END