diff --git a/biphenyl_mm_energy.ipynb b/biphenyl_mm_energy.ipynb
index 7b4f1cd7..b2f3a94e 100644
--- a/biphenyl_mm_energy.ipynb
+++ b/biphenyl_mm_energy.ipynb
@@ -695,7 +695,7 @@
    ],
    "source": [
     "%%time\n",
-    "all_energies = []\n",
+    "prod_energies = []\n",
     "\n",
     "for offmol, dihedral in zip(off_molecules, dihedrals):\n",
     "    print(f\"Processing {offmol} with dihedral indices {dihedral}\")\n",