1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/target/arm/tatung/tpj1022/powermgmt-tpj1022.c b/firmware/target/arm/tatung/tpj1022/powermgmt-tpj1022.c
index ef7919d5aa..cc91012fcd 100644
--- a/firmware/target/arm/tatung/tpj1022/powermgmt-tpj1022.c
+++ b/firmware/target/arm/tatung/tpj1022/powermgmt-tpj1022.c
@@ -56,7 +56,7 @@ const unsigned short percent_to_volt_charge[11] =
 /* full-scale ADC readout (2^10) in millivolt */
 
 /* Returns battery voltage from ADC [millivolts] */
-unsigned int battery_adc_voltage(void)
+int _battery_voltage(void)
 {
     return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10;
 }