diff --git a/include/hardware/audio_policy.h b/include/hardware/audio_policy.h
index 243f416..454ac85 100644
--- a/include/hardware/audio_policy.h
+++ b/include/hardware/audio_policy.h
@@ -101,7 +101,7 @@
      * by audio_mode_t */
     void (*set_phone_state)(struct audio_policy *pol, audio_mode_t state);
 
-    /* indicate a change in ringer mode */
+    /* deprecated, never called (was "indicate a change in ringer mode") */
     void (*set_ringer_mode)(struct audio_policy *pol, uint32_t mode,
                             uint32_t mask);