diff --git a/src/emu/sound/tms3615.h b/src/emu/sound/tms3615.h
index 5fc23aaabed..6b49d5db88f 100644
--- a/src/emu/sound/tms3615.h
+++ b/src/emu/sound/tms3615.h
@@ -53,7 +53,7 @@ private:
 	int m_enable;                   /* mask which tones to play */
 };
 
-extern const device_type TMS3615;
+extern ATTR_DEPRECATED const device_type TMS3615;
 
 
 #endif /* __TMS3615_H__ */