diff --git a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
index ecb5c657f92ffb984feca286665c4e3aaf15f281..76987d79519ae0f2642d001ec22fd94b05d5c8d3 100644
--- a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
+++ b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
@@ -646,7 +646,7 @@
     "step_timer.start()\n",
     "\n",
     "md = None\n",
-    "# Read report path and create file location tuple to add with the injection\n",
+    "# Location of source data, injected with the constants\n",
     "file_loc = f\"proposal:{prop} runs:{' '.join([str(r) for r in reversed(run_numbers)])}\"\n",
     "\n",
     "for qm in res:\n",