diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index cb28cf8..7568df6 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -354,7 +354,7 @@
 }
 
 static int max8998_set_voltage_buck(struct regulator_dev *rdev,
-				    int min_uV, int max_uV, int *selector)
+				    int min_uV, int max_uV, unsigned *selector)
 {
 	struct max8998_data *max8998 = rdev_get_drvdata(rdev);
 	struct max8998_platform_data *pdata =