diff --git a/src/panels/config/entities/entity-registry-settings.ts b/src/panels/config/entities/entity-registry-settings.ts
index 2bd09c640b..bd9f7db055 100644
--- a/src/panels/config/entities/entity-registry-settings.ts
+++ b/src/panels/config/entities/entity-registry-settings.ts
@@ -125,6 +125,7 @@ const OVERRIDE_SENSOR_UNITS = {
   pressure: ["hPa", "Pa", "kPa", "bar", "cbar", "mbar", "mmHg", "inHg", "psi"],
   speed: ["ft/s", "in/d", "in/h", "km/h", "kn", "m/s", "mm/d", "mm/h", "mph"],
   temperature: ["°C", "°F", "K"],
+  voltage: ["V", "mV"],
   volume: ["CCF", "fl. oz.", "ft³", "gal", "L", "mL", "m³"],
   water: ["CCF", "ft³", "gal", "L", "m³"],
   weight: ["g", "kg", "lb", "mg", "oz", "st", "µg"],