diff --git a/scos_actions/calibration/interfaces/calibration.py b/scos_actions/calibration/interfaces/calibration.py
index b243bea4..011e56b5 100644
--- a/scos_actions/calibration/interfaces/calibration.py
+++ b/scos_actions/calibration/interfaces/calibration.py
@@ -129,3 +129,4 @@ def to_json(self) -> None:
         dict_to_json.pop("file_path", None)
         with open(self.file_path, "w") as outfile:
             outfile.write(json.dumps(dict_to_json))
+        logger.debug("Finished updating calibration file.")
diff --git a/scos_actions/calibration/sensor_calibration.py b/scos_actions/calibration/sensor_calibration.py
index f2f66718..0330b944 100644
--- a/scos_actions/calibration/sensor_calibration.py
+++ b/scos_actions/calibration/sensor_calibration.py
@@ -54,6 +54,7 @@ def update(
         :param temp_degC: Temperature at calibration time, in degrees Celsius.
         :param file_path: File path for saving the updated calibration data.
         """
+        logger.debug("Updating calibration file.")
         try:
             # Get existing calibration data entry which will be updated
             data_entry = self.get_calibration_dict(params)