diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 39f0bc5145c0..b0ca9f9b70f7 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -471,9 +471,9 @@ static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
 
 /*
  * MICGAIN volume control:
- * from 6 to 30 dB in 6 dB steps
+ * from -6 to 30 dB in 6 dB steps
  */
-static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
+static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -600, 600, 0);
 
 /*
  * AFMGAIN volume control: