diff --git a/day2_add_cmdline_parameter.ipynb b/day2_add_cmdline_parameter.ipynb
index 87adaaf..ef28983 100644
--- a/day2_add_cmdline_parameter.ipynb
+++ b/day2_add_cmdline_parameter.ipynb
@@ -381,7 +381,7 @@
     }
    ],
    "source": [
-    "sed -n '16,27p' < plot_traj.py"
+    "sed -n '13,24p' < plot_traj.py"
    ]
   },
   {
@@ -414,7 +414,7 @@
     }
    ],
    "source": [
-    "sed -n '36,52p' < plot_traj.py"
+    "sed -n '32,48p' < plot_traj.py"
    ]
   },
   {