diff --git a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
index b313a0b0c3fa20b31fcfacda366c67441d732163..89391efcddda794b8549a2a070f54c2ba9b5952a 100644
--- a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
+++ b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
@@ -589,6 +589,11 @@
     "                \"data.gain\", data=gain_corr)\n",
     "            outp_source.create_compressed_key(\n",
     "                \"data.mask\", data=mask_corr)\n",
+    "            \n",
+    "            # Temporary hotfix for FXE assuming this dataset is in corrected files.\n",
+    "            outp_source.create_key(\n",
+    "                \"data.trainId\", data=seq_dc.train_ids,\n",
+    "                chunks=(min(50, len(seq_dc.train_ids))))\n",
     "\n",
     "            save_reduced_rois(outp_file, data_corr, mask_corr, local_karabo_da)\n",
     "\n",