diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f2214e7c75b331..0179716f74d746 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -956,7 +956,7 @@ static int drms_uA_update(struct regulator_dev *rdev)
 		/* get input voltage */
 		input_uV = 0;
 		if (rdev->supply)
-			input_uV = regulator_get_voltage(rdev->supply);
+			input_uV = regulator_get_voltage_rdev(rdev->supply->rdev);
 		if (input_uV <= 0)
 			input_uV = rdev->constraints->input_uV;
 		if (input_uV <= 0) {