diff --git a/src/emu/sound/5220intf.c b/src/emu/sound/5220intf.c
index 3e227743267..634f579085e 100644
--- a/src/emu/sound/5220intf.c
+++ b/src/emu/sound/5220intf.c
@@ -73,12 +73,14 @@ static void *tms5220_start(int sndindex, int clock, const void *config)
 }
 
 
+#if (HAS_TMC0285) && (HAS_TMS5200)
 static void *tms5200_start(int sndindex, int clock, const void *config)
 {
 	struct tms5220_info *info = tms5220_start(sndindex, clock, config);
 	tms5220_set_variant(info->chip, variant_tmc0285);
 	return info;
 }
+#endif /* (HAS_TMC0285) && (HAS_TMS5200) */