1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/target/arm/as3525/sansa-m200v4/powermgmt-m200v4.c b/firmware/target/arm/as3525/sansa-m200v4/powermgmt-m200v4.c
index cbd2c4bf27..829ed36a8e 100644
--- a/firmware/target/arm/as3525/sansa-m200v4/powermgmt-m200v4.c
+++ b/firmware/target/arm/as3525/sansa-m200v4/powermgmt-m200v4.c
@@ -52,7 +52,7 @@ const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][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_VBAT) * BATTERY_SCALE_FACTOR) >> 10;
 }