diff --git a/src/devices/sound/votrax.h b/src/devices/sound/votrax.h
index 2efc668a7eb..900d1f218b9 100644
--- a/src/devices/sound/votrax.h
+++ b/src/devices/sound/votrax.h
@@ -17,8 +17,6 @@ class votrax_sc01_device :  public device_t,
 							public device_sound_interface
 {
 public:
-	static constexpr feature_type imperfect_features() { return feature::SOUND; }
-
 	// construction/destruction
 	votrax_sc01_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);