diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 72b3202c66745f230f45c14f1c5f4ba8ec08f7de..bce7c0784b6bcadf248a448f9dfec9f82faae7ba 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -947,6 +947,7 @@ int arizona_dev_init(struct arizona *arizona)
 		regmap_update_bits(arizona->regmap,
 				   ARIZONA_MIC_BIAS_CTRL_1 + i,
 				   ARIZONA_MICB1_LVL_MASK |
+				   ARIZONA_MICB1_EXT_CAP |
 				   ARIZONA_MICB1_DISCH |
 				   ARIZONA_MICB1_BYPASS |
 				   ARIZONA_MICB1_RATE, val);