diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 503f45008..f0b09504f 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -2264,7 +2264,11 @@ void Thermostat::register_device_values() {
     case EMS_DEVICE_FLAG_JUNKERS:
         register_device_value(TAG_THERMOSTAT_DATA, &dateTime_, DeviceValueType::TEXT, nullptr, FL_(dateTime), DeviceValueUOM::NONE, MAKE_CF_CB(set_datetime));
         break;
+    case EMS_DEVICE_FLAG_EASY:
+        register_device_value(TAG_THERMOSTAT_DATA, &dateTime_, DeviceValueType::TEXT, nullptr, FL_(dateTime), DeviceValueUOM::NONE); // can't set datetime
+        break;
     default:
+        register_device_value(TAG_THERMOSTAT_DATA, &dateTime_, DeviceValueType::TEXT, nullptr, FL_(dateTime), DeviceValueUOM::NONE); // can't set datetime
         break;
     }
 }