diff --git a/examples/06_gevp.ipynb b/examples/06_gevp.ipynb
index 5f9b6b61..480afe3a 100644
--- a/examples/06_gevp.ipynb
+++ b/examples/06_gevp.ipynb
@@ -130,7 +130,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "single_smearing = matrix_V1V1.index(0,0)"
+    "single_smearing = matrix_V1V1.item(0,0)"
    ]
   },
   {
@@ -284,7 +284,7 @@
     "m_eff_Jpsi = corr_ground.m_eff(variant=\"cosh\")\n",
     "\n",
     "# We can now pick a plateau range and get a single value for the mass. \n",
-    "\n",
+    "m_eff_Jpsi.gamma_method()\n",
     "m_Jpsi = m_eff_Jpsi.plateau([5, 24])\n",
     "\n",
     "# We can now visually compare our plateau value to the data\n",