diff --git a/NucuCar.Sensors/Grpc/Responses.cs b/NucuCar.Sensors/Grpc/Responses.cs
index a28a88a..34a3606 100644
--- a/NucuCar.Sensors/Grpc/Responses.cs
+++ b/NucuCar.Sensors/Grpc/Responses.cs
@@ -4,7 +4,7 @@ namespace NucuCar.Sensors.Grpc
 {
     public static class Responses
     {
-        public static NucuCarSensorResponse GrpcIsDisabledResponse = new NucuCarSensorResponse()
+        public static readonly NucuCarSensorResponse GrpcIsDisabledResponse = new NucuCarSensorResponse()
         {
             State = SensorStateEnum.Disabled,
             JsonData = "{}"