diff --git a/site/en/tutorials/structured_data/time_series.ipynb b/site/en/tutorials/structured_data/time_series.ipynb
index d06ebcfeaa9..1a08a63f1ff 100644
--- a/site/en/tutorials/structured_data/time_series.ipynb
+++ b/site/en/tutorials/structured_data/time_series.ipynb
@@ -398,7 +398,7 @@
       },
       "outputs": [],
       "source": [
-        "timestamp_s = date_time.map(datetime.datetime.timestamp)"
+        "timestamp_s = date_time.map(pd.Timestamp.timestamp)"
       ]
     },
     {