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 b9555856554f2d7a1292e30cb86572345f6c7c7d..17d7c74f4808b59bdfac6dc815cfd00ae5efbbff 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
@@ -102,6 +102,8 @@
     ")\n",
     "from cal_tools.enums import BadPixels, JungfrauGainMode\n",
     "from cal_tools.jungfrau import jungfraulib\n",
+    "# Set the environment variable\n",
+    "os.environ['CAL_RESTFUL_TEST_CONFIG'] = '1'\n",
     "from cal_tools.restful_config import (\n",
     "    extra_calibration_client,\n",
     ")\n",