diff --git a/src/mame/drivers/aliens.c b/src/mame/drivers/aliens.c
index d4d9194079e..541107befd7 100644
--- a/src/mame/drivers/aliens.c
+++ b/src/mame/drivers/aliens.c
@@ -455,11 +455,11 @@ ROM_START( aliensa )
 	/* second half empty */
 
 	ROM_REGION( 0x200000, "k051960", 0 )    /* sprites */
-	ROM_LOAD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
-	ROM_LOAD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
-	ROM_LOAD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
+	ROM_LOAD32_WORD( "875b10.k08", 0x000000, 0x80000, CRC(0b1035b1) SHA1(db04020761386e79249762cd1540208375c38c7f) )
+	ROM_LOAD32_WORD( "875b09.k02", 0x000002, 0x80000, CRC(e76b3c19) SHA1(6838e07460b3eaaeb129208ad0696c8019bd63d9) )
+	ROM_LOAD32_WORD( "875b06.j08", 0x100000, 0x40000, CRC(081a0566) SHA1(3a4aa14178fe76a030224743c9e9cd974e08bd79) )
 	/* second half empty */
-	ROM_LOAD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
+	ROM_LOAD32_WORD( "875b05.j02", 0x100002, 0x40000, CRC(19a261f2) SHA1(b0518fad833b3e613e0201d5d9cab73dc5e78e1d) )
 	/* second half empty */
 
 	ROM_REGION( 0x0100, "proms", 0 )