diff --git a/src/mame/drivers/opwolf.cpp b/src/mame/drivers/opwolf.cpp
index ce54cd2b71f..324d39629b5 100644
--- a/src/mame/drivers/opwolf.cpp
+++ b/src/mame/drivers/opwolf.cpp
@@ -981,8 +981,8 @@ ROM_END
 
 ROM_START( opwolfjsc )
 	ROM_REGION( 0x40000, "maincpu", 0 )     /* 256k for 68000 code */
-    ROM_LOAD16_BYTE( "b20_27.ic40.27512", 0x000000, 0x010000, CRC(6bd02046) SHA1(3d3047b7665635e890337f1f46351427e307bfe7) )
-    ROM_LOAD16_BYTE( "b20_26.ic30.27512", 0x000001, 0x010000, CRC(644dd415) SHA1(0cdc1152cb16fb872387f8cab3d9ee4b6286b965) )
+	ROM_LOAD16_BYTE( "b20_27.ic40.27512", 0x000000, 0x010000, CRC(6bd02046) SHA1(3d3047b7665635e890337f1f46351427e307bfe7) )
+	ROM_LOAD16_BYTE( "b20_26.ic30.27512", 0x000001, 0x010000, CRC(644dd415) SHA1(0cdc1152cb16fb872387f8cab3d9ee4b6286b965) )
 	ROM_LOAD16_BYTE( "b20-04.39",     0x20000, 0x10000, CRC(216b4838) SHA1(2851cae00bb3e32e20f35fdab8ed6f149e658363) )
 	ROM_LOAD16_BYTE( "b20-18.29",     0x20001, 0x10000, CRC(fd202470) SHA1(3108c14953d2f50d861946e9f646813b7050b58a) )