diff --git a/interface/src/app/main/types.ts b/interface/src/app/main/types.ts
index 67b88d10e..492ccc532 100644
--- a/interface/src/app/main/types.ts
+++ b/interface/src/app/main/types.ts
@@ -196,7 +196,7 @@ export enum DeviceValueUOM {
   MBAR,
   LH,
   CTKWH,
-  HZ
+  HERTZ
 }
 
 export const DeviceValueUOM_s = [
diff --git a/src/core/emsdevicevalue.h b/src/core/emsdevicevalue.h
index 04d28809c..01eb461c2 100644
--- a/src/core/emsdevicevalue.h
+++ b/src/core/emsdevicevalue.h
@@ -76,7 +76,7 @@ class DeviceValue {
         MBAR,        // 24 - mbar - atmospheric pressure
         LH,          // 25 - l/h - volume flow rate
         CTKWH,       // 26 - ct/kWh - monetary
-        HZ,          // 27 - Hz - frequency
+        HERTZ,       // 27 - Hz - frequency
         CONNECTIVITY // 28 - used in HA - connectivity
     };
 
diff --git a/src/core/mqtt.cpp b/src/core/mqtt.cpp
index 03d9b2eb5..2e43c2f6b 100644
--- a/src/core/mqtt.cpp
+++ b/src/core/mqtt.cpp
@@ -1268,7 +1268,7 @@ void Mqtt::add_ha_classes(JsonObject doc, const uint8_t device_type, const uint8
         doc[sc_ha] = sc_ha_total_increasing;
         doc[dc_ha] = "monetary";
         break;
-    case DeviceValueUOM::HZ:
+    case DeviceValueUOM::HERTZ:
         doc[sc_ha] = sc_ha_measurement;
         doc[dc_ha] = "frequency";
         break;