diff --git a/audio/audio_hw.c b/audio/audio_hw.c
index 3cb40c2..5dac457 100755
--- a/audio/audio_hw.c
+++ b/audio/audio_hw.c
@@ -541,7 +541,7 @@ static void set_incall_device(struct m0_audio_device *adev)
         case AUDIO_DEVICE_OUT_AUX_DIGITAL:
             rx_dev_id = DEVICE_SPEAKER_MONO_RX_ACDB_ID;
             tx_dev_id = DEVICE_SPEAKER_TX_ACDB_ID;
-            voice_index = 7;
+            voice_index = 9;
             break;
         case AUDIO_DEVICE_OUT_WIRED_HEADSET:
         case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: