1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/target/arm/rk27xx/rk27generic/powermgmt-rk27generic.c b/firmware/target/arm/rk27xx/rk27generic/powermgmt-rk27generic.c
index 3960dab2c1..ccbc098d91 100644
--- a/firmware/target/arm/rk27xx/rk27generic/powermgmt-rk27generic.c
+++ b/firmware/target/arm/rk27xx/rk27generic/powermgmt-rk27generic.c
@@ -60,7 +60,7 @@ const unsigned short percent_to_volt_charge[11] =
 #define BATTERY_SCALE_FACTOR 6000
 
 /* Returns battery voltage from ADC [millivolts] */
-unsigned int battery_adc_voltage(void)
+int _battery_voltage(void)
 {
     return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 10;
 }