diff --git a/src/mame/drivers/cps1.c b/src/mame/drivers/cps1.c
index 7b16b014436..595f2bb1c2c 100644
--- a/src/mame/drivers/cps1.c
+++ b/src/mame/drivers/cps1.c
@@ -5670,7 +5670,7 @@ ROM_START( cawingj )
 	ROM_LOAD( "sou1",         0x0000, 0x0117, CRC(84f4b2fe) SHA1(dcc9e86cc36316fe42eace02d6df75d08bc8bb6d) )
 
 	ROM_REGION( 0x0200, "bboardplds", 0 )
-	ROM_LOAD( "ca22b.1a",     0x0000, 0x0117, NO_DUMP )
+	ROM_LOAD( "ca22b.1a",     0x0000, 0x0117, CRC(5152e678) SHA1(ac61df30cd073b26f2145e3ea0c513ec804d047a) )
 	ROM_LOAD( "iob1.12e",     0x0000, 0x0117, CRC(3abc0700) SHA1(973043aa46ec6d5d1db20dc9d5937005a0f9f6ae) )	/* seen the same pcb with LWIO.12E */
 ROM_END