diff --git a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
index b62e4e1d513a8e6805e83df39a30dcd81eb03e45..cbfae2b5d78c233e0ea9e1ddc393100f64e7b36f 100644
--- a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
+++ b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
@@ -46,7 +46,7 @@
     "integration_time = 4.96  # integration time in us, will be overwritten by value in file\n",
     "gain_setting = 0  # 0 for dynamic gain, 1 for dynamic HG0, will be overwritten by value in file\n",
     "mem_cells = 0  # leave memory cells equal 0, as it is saved in control information starting 2019.\n",
-    "db_module = \"\"  # ID of module in calibration database, this parameter is ignore in the notebook. TODO: remove from calibration_configurations.\n",
+    "db_module = [\"\"]  # ID of module in calibration database, this parameter is ignore in the notebook. TODO: remove from calibration_configurations.\n",
     "manual_slow_data = False  # if true, use manually entered bias_voltage and integration_time values\n",
     "chunk_size = 0\n",
     "\n",
diff --git a/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb b/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb
index a63b7ec0b6b60a1df504909b95a092d8c1445176..1c887202cd64d7e71327dcebfc92d8335e814b7e 100644
--- a/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb
+++ b/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb
@@ -50,7 +50,7 @@
     "chunkSize = 10  # iteration chunk size, needs to match or be less than number of images in a sequence file\n",
     "imageRange = [0, 500]  # image range in which to evaluate\n",
     "memoryCells = 16  # number of memory cells\n",
-    "db_module = \"\"  # ID of module in calibration database, this parameter is ignored in the notebook. TODO: remove from calibration_configurations.\n",
+    "db_module = [\"\"]  # ID of module in calibration database, this parameter is ignored in the notebook. TODO: remove from calibration_configurations.\n",
     "manual_slow_data = False  # if true, use manually entered bias_voltage and integration_time values\n",
     "time_limits = 0.025  # to find calibration constants later on, the integration time is allowed to vary by 0.5 us\n",
     "operation_mode = ''  # Detector operation mode, optional"