diff --git a/NuRadioReco/detector/RNO_G/rnog_detector.py b/NuRadioReco/detector/RNO_G/rnog_detector.py
index 0fb23749b..e5971c5d9 100644
--- a/NuRadioReco/detector/RNO_G/rnog_detector.py
+++ b/NuRadioReco/detector/RNO_G/rnog_detector.py
@@ -173,8 +173,8 @@ def __init__(self, database_connection='RNOG_test_public', log_level=logging.INF
                     st_id: 1 for st_id in self.__buffered_stations}
                 self.__default_values = import_dict["default_values"]
             else:
-                self.logger.error(f"{pickle_file} with unknown version.")
-                raise ReferenceError(f"{pickle_file} with unknown version.")
+                self.logger.error(f"{detector_file} with unknown version.")
+                raise ReferenceError(f"{detector_file} with unknown version.")
 
         # Allow overwriting the hard-coded values
         self.__default_values.update(over_write_handset_values)