diff --git a/notebooks/LPD/LPD_Correct_Fast.ipynb b/notebooks/LPD/LPD_Correct_Fast.ipynb
index 443afdcdcff98d7a77202755852b54075df9bee6..cfbd048764ea31f9e0925c020b2af77f4a47abaf 100644
--- a/notebooks/LPD/LPD_Correct_Fast.ipynb
+++ b/notebooks/LPD/LPD_Correct_Fast.ipynb
@@ -241,6 +241,7 @@
     "\n",
     "        for calibration_name, ccv in ccvs['constants'].items():\n",
     "            if ccv['file-path'] is None:\n",
+    "                warnings.warn(f\"Missing {calibration_name} for {da}\")\n",
     "                continue\n",
     "\n",
     "            dtype = np.uint32 if calibration_name.startswith('BadPixels') else np.float32\n",