diff --git a/.gitignore b/.gitignore
index 169af9e..d7e1472 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 .development
+.DS_Store
diff --git a/docs/ServiceList.md b/docs/ServiceList.md
index 361e99f..73feb65 100644
--- a/docs/ServiceList.md
+++ b/docs/ServiceList.md
@@ -155,6 +155,7 @@ Additionally, when first starting up, HomeSpan begins by validating the device's
 |TargetHumidifierDehumidifierState|uint8_t|0|
 |TargetPosition|uint8_t|0|
 |TargetDoorState|uint8_t|1|
+|TargetHeaterCoolerState|uint8_t|0|
 |TargetHeatingCoolingState|uint8_t|0|
 |TargetRelativeHumidity|double|0|
 |TargetTemperature|double|16|
diff --git a/src/Services.h b/src/Services.h
index ed3bb5f..6fb5040 100644
--- a/src/Services.h
+++ b/src/Services.h
@@ -475,6 +475,7 @@ namespace Characteristic {
   CREATE_CHAR(TargetHumidifierDehumidifierState,uint8_t,0);
   CREATE_CHAR(TargetPosition,uint8_t,0);
   CREATE_CHAR(TargetDoorState,uint8_t,1);
+  CREATE_CHAR(TargetHeaterCoolerState,uint8_t,0);
   CREATE_CHAR(TargetHeatingCoolingState,uint8_t,0);
   CREATE_CHAR(TargetRelativeHumidity,double,0);
   CREATE_CHAR(TargetTemperature,double,16);