diff --git a/Kapitel_0._Ihr_erstes_Notebook.ipynb b/Kapitel_0._Ihr_erstes_Notebook.ipynb
index 75d4c90..d76e177 100644
--- a/Kapitel_0._Ihr_erstes_Notebook.ipynb
+++ b/Kapitel_0._Ihr_erstes_Notebook.ipynb
@@ -157,7 +157,7 @@
    },
    "outputs": [],
    "source": [
-    "%run costum_set_up.py"
+    "%run custom_set_up.py"
    ]
   },
   {