diff --git a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
index a5b646c7c26529cc5f7f4c8213059917515cb46a..15131bdc5416b61203bdc4c4aeee53a2366e040c 100644
--- a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
+++ b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
@@ -242,7 +242,10 @@
     "            \"No fixed gain constants found. \"\n",
     "            \"Looking for dynamic gain constant. \"\n",
     "            f\"(CalCatError: {e}.\")\n",
+    "    else:\n",
+    "        return jf_cal, jf_metadata\n",
     "\n",
+    "    # In case of CALCATError exception look for dynamic gain constants\n",
     "    jf_cal, jf_metadata = jungfrau_cal_mdata(gm=0)\n",
     "\n",
     "    for mod, ccvs in jf_metadata.items():\n",