diff --git a/lib/livebook/runtime/definitions.ex b/lib/livebook/runtime/definitions.ex
index 594268d4a..291411e69 100644
--- a/lib/livebook/runtime/definitions.ex
+++ b/lib/livebook/runtime/definitions.ex
@@ -249,7 +249,7 @@ defmodule Livebook.Runtime.Definitions do
       source: """
       df =
         Kino.FS.file_spec("{{NAME}}")
-        |> Explorer.DataFrame.from_parquet!()\
+        |> Explorer.DataFrame.from_parquet!(lazy: true)\
       """,
       packages: [kino, kino_explorer]
     },