diff --git a/notebooks/LPD/LPD_Correct_Fast.ipynb b/notebooks/LPD/LPD_Correct_Fast.ipynb
index a0084db0e4e135840c41b7b5410439e7ecbf6f43..4f7bec492af87c17081108b02e0fa9b99a8109b8 100644
--- a/notebooks/LPD/LPD_Correct_Fast.ipynb
+++ b/notebooks/LPD/LPD_Correct_Fast.ipynb
@@ -329,7 +329,7 @@
     "    retrieved_consts = {}\n",
     "    for kda, pdu in zip(calib_data.aggregator_names, calib_data.pdu_names):\n",
     "        retrieved_consts[kda] = {\n",
-    "            \"physical_name\": pdu,\n",
+    "            \"physical-name\": pdu,\n",
     "            \"constants\": {},\n",
     "        }\n",
     "    \n",