diff --git a/notebooks/Gotthard2/Correction_Gotthard2_NBC.ipynb b/notebooks/Gotthard2/Correction_Gotthard2_NBC.ipynb
index c0ea887d2454b62803bf6c1cfbbe5e2362f81771..e4153353f962fd9772e78b640b0889c85bf57dd1 100644
--- a/notebooks/Gotthard2/Correction_Gotthard2_NBC.ipynb
+++ b/notebooks/Gotthard2/Correction_Gotthard2_NBC.ipynb
@@ -85,7 +85,7 @@
     "exposure_period = -1.  # Detector exposure period, set to -1 to use value in raw file.\n",
     "acquisition_rate = -1.  # Detector acquisition rate (1.1/4.5), set to -1 to use value in raw file.\n",
     "single_photon = -1  # Detector single photon mode (High/Low CDS), set to -1 to use value in raw file.\n",
-    "reverse_second_module = False  # Reverse 25um GH2 second module before interleaving. set to -1 to use value in raw file reverse based on `CTRL/reverseSlaveReadOutMode`'s value.\n",
+    "reverse_second_module = -1  # Reverse 25um GH2 second module before interleaving. set to -1 to use value in raw file to reverse based on `CTRL/reverseSlaveReadOutMode`'s value.\n",
     "\n",
     "# Parameters for plotting\n",
     "skip_plots = False  # exit after writing corrected files\n",
@@ -188,7 +188,7 @@
     "    single_photon = g2ctrl.get_single_photon()\n",
     "\n",
     "gh2_detector = g2ctrl.get_det_type()\n",
-    "if reverse_second_module and gh2_detector == \"25um\":\n",
+    "if reverse_second_module == -1 and gh2_detector == \"25um\":\n",
     "    reverse_second_module = not g2ctrl.second_module_reversed()\n",
     "    print(\n",
     "        \"Second module is not reversed. \"\n",