diff --git a/drivers/iio/adc/qcom-spmi-vadc.c b/drivers/iio/adc/qcom-spmi-vadc.c
index 18eb2955cc21750ca8698fc2447e0a289988c70e..faaf711325b524269a716822772858e5a31b8165 100644
--- a/drivers/iio/adc/qcom-spmi-vadc.c
+++ b/drivers/iio/adc/qcom-spmi-vadc.c
@@ -101,7 +101,7 @@
 #define KELVINMIL_CELSIUSMIL			273150
 
 #define PMI_CHG_SCALE_1				-138890
-#define PMI_CHG_SCALE_2				391750000000
+#define PMI_CHG_SCALE_2				391750000000LL
 
 #define VADC_CHAN_MIN			VADC_USBIN
 #define VADC_CHAN_MAX			VADC_LR_MUX3_BUF_PU1_PU2_XO_THERM