diff --git a/src/main/sensors/voltage.c b/src/main/sensors/voltage.c
index 7af2caa091..dd46ab059f 100644
--- a/src/main/sensors/voltage.c
+++ b/src/main/sensors/voltage.c
@@ -190,6 +190,7 @@ void voltageMeterADCRefresh(void)
 #endif
 #else
         UNUSED(voltageAdcToVoltage);
+        UNUSED(voltageMeterAdcChannelMap);
 
         state->voltageDisplayFiltered = 0;
         state->voltageUnfiltered = 0;