diff --git a/src/mame/drivers/hh_sm510.cpp b/src/mame/drivers/hh_sm510.cpp
index aa846b7d607..869de77ed46 100644
--- a/src/mame/drivers/hh_sm510.cpp
+++ b/src/mame/drivers/hh_sm510.cpp
@@ -4616,7 +4616,7 @@ ROM_START( gnw_climber )
 	ROM_LOAD( "dr-106.program", 0x0000, 0x1000, CRC(2adcbd6d) SHA1(110dc08c65120ab2c76ee647e89aa2726e24ac1a) )
 
 	ROM_REGION( 0x100, "maincpu:melody", 0 )
-	ROM_LOAD( "dr-106.melody", 0x000, 0x100, BAD_DUMP CRC(c99d7998) SHA1(4f8cf35b13f8b7654e7186bfd67d197d9053e949) ) // decap needed for verification
+	ROM_LOAD( "dr-106.melody", 0x000, 0x100, BAD_DUMP CRC(7c49a3a3) SHA1(fad00d650b4864135c7d50f6fae735b7fffe720f) ) // decap needed for verification
 
 	ROM_REGION( 542332, "screen", 0)
 	ROM_LOAD( "gnw_climber.svg", 0, 542332, CRC(d7e84c21) SHA1(a5b5b68c8cdb3a09966bfb91b281791bef311248) )
@@ -4627,7 +4627,7 @@ ROM_START( gnw_climbcs )
 	ROM_LOAD( "dr-106.program", 0x0000, 0x1000, BAD_DUMP CRC(2adcbd6d) SHA1(110dc08c65120ab2c76ee647e89aa2726e24ac1a) ) // dumped from NWS version
 
 	ROM_REGION( 0x100, "maincpu:melody", 0 )
-	ROM_LOAD( "dr-106.melody", 0x000, 0x100, BAD_DUMP CRC(c99d7998) SHA1(4f8cf35b13f8b7654e7186bfd67d197d9053e949) ) // dumped from NWS version
+	ROM_LOAD( "dr-106.melody", 0x000, 0x100, BAD_DUMP CRC(7c49a3a3) SHA1(fad00d650b4864135c7d50f6fae735b7fffe720f) ) // dumped from NWS version
 
 	ROM_REGION( 564704, "screen", 0)
 	ROM_LOAD( "gnw_climbcs.svg", 0, 564704, CRC(60b25cc5) SHA1(1c101539a861257c5b0334ffdf9491c877759fa1) )