diff --git a/notebooks/generic/overallmodules_Darks_Summary_NBC.ipynb b/notebooks/generic/overallmodules_Darks_Summary_NBC.ipynb
index e36698c9c7f52317ec26a0863cebe3c5f81b2500..94dc039662f4685e87ebbcd34b78ead4b73ec5d3 100644
--- a/notebooks/generic/overallmodules_Darks_Summary_NBC.ipynb
+++ b/notebooks/generic/overallmodules_Darks_Summary_NBC.ipynb
@@ -212,9 +212,9 @@
     "# Loop over modules\n",
     "for i in range(nmods):\n",
     "    qm = module_index_to_qm(i)\n",
-    "    if qm not in metadata[\"modules_mapping\"].keys() and metadata[\"modules_mapping\"][qm]:\n",
+    "    if not mod_mapping.get(qm):\n",
     "        continue\n",
-    "    det_name = metadata[\"modules_mapping\"][qm]\n",
+    "    det_name = mod_mapping[qm]\n",
     "    # loop over constants\n",
     "    for const in ['Offset', 'Noise', 'ThresholdsDark', 'BadPixelsDark']:\n",
     "        fpath = '{}/const_{}_{}.h5'.format(out_folder, const, det_name)\n",