diff --git a/include/TinyComponent.h b/include/TinyComponent.h
index 725fce1..999d5f7 100644
--- a/include/TinyComponent.h
+++ b/include/TinyComponent.h
@@ -24,7 +24,7 @@ bool buildSensorJson(unsigned long value, JsonDocument& jsonDoc) {
         sensor["humidity"] = (float)GET_HUMIDITY(value) / 10;
         break;
     case SensorType::CONTACT:
-        sensor["state"] = GET_STATE(value) ? "on" : "off";
+        sensor["state"] = GET_STATE(value) ? "ON" : "OFF";
         break;
     default:
         return false;