diff --git a/src/mame/drivers/hh_sm510.cpp b/src/mame/drivers/hh_sm510.cpp
index 70b2f9188a6..6c5b2e71ebb 100644
--- a/src/mame/drivers/hh_sm510.cpp
+++ b/src/mame/drivers/hh_sm510.cpp
@@ -87,7 +87,7 @@ YM-105    nws  SM511   Super Mario Bros.
 DR-106    nws  SM511   Climber
 BF-107    nws  SM511   Balloon Fight
 MJ-108*   nws  SM511?  Mario The Juggler
-BU-201    sc   SM510?  Spitball Sparky
+BU-201*   sc   SM510?  Spitball Sparky
 UD-202*   sc   SM510?  Crab Grab
 BX-301    mvs  SM511   Boxing (aka Punch Out)
 AK-302*   mvs  SM511?  Donkey Kong 3