diff --git a/docs/amplitude-analysis.ipynb b/docs/amplitude-analysis.ipynb
index b54d8ff7..18eca084 100644
--- a/docs/amplitude-analysis.ipynb
+++ b/docs/amplitude-analysis.ipynb
@@ -723,7 +723,7 @@
     "import pandas as pd\n",
     "\n",
     "data_frame = pd.DataFrame(data)\n",
-    "phsp_frame = pd.DataFrame(data)\n",
+    "phsp_frame = pd.DataFrame(phsp)\n",
     "data_frame"
    ]
   },