diff --git a/src/modules/events/temperature_calibration/task.cpp b/src/modules/events/temperature_calibration/task.cpp
index cd032451ca..c1eb0e069b 100644
--- a/src/modules/events/temperature_calibration/task.cpp
+++ b/src/modules/events/temperature_calibration/task.cpp
@@ -124,7 +124,7 @@ void TemperatureCalibration::task_main()
 	}
 
 	int32_t min_temp_rise = 24;
-	param_get(param_find("SYS_CAL_TEMP"), &min_temp_rise);
+	param_get(param_find("SYS_CAL_TDEL"), &min_temp_rise);
 	PX4_INFO("Waiting for %i degrees difference in sensor temperature", min_temp_rise);
 
 	//init calibrators
diff --git a/src/modules/systemlib/system_params.c b/src/modules/systemlib/system_params.c
index 10e6ffd5e4..cbd83fc665 100644
--- a/src/modules/systemlib/system_params.c
+++ b/src/modules/systemlib/system_params.c
@@ -212,13 +212,12 @@ PARAM_DEFINE_INT32(SYS_CAL_BARO, 0);
 /**
  * Required temperature rise during thermal calibration
  *
- * A temperature increase greater than this value is required during calibration performed by the setting of SYS_TEMP_CAL.
- * Calibration will complete for each sensor when the temperature increase above the starting temeprature exceeds SYS_TEMP_RISE.
+ * A temperature increase greater than this value is required during calibration.
+ * Calibration will complete for each sensor when the temperature increase above the starting temeprature exceeds the value set by SYS_CAL_TDEL.
  * If the temperature rise is insufficient, the calibration will continue indefinitely and the board will need to be repowered to exit.
  *
  * @unit deg C
  * @min 10
- * @max 50
  * @group System
  */
-PARAM_DEFINE_INT32(SYS_CAL_TEMP, 24);
+PARAM_DEFINE_INT32(SYS_CAL_DELT, 24);