diff --git a/02_python_algorithms/08a_list_files_in_a_folder.ipynb b/02_python_algorithms/08a_list_files_in_a_folder.ipynb
index ea25688..60a0f4a 100644
--- a/02_python_algorithms/08a_list_files_in_a_folder.ipynb
+++ b/02_python_algorithms/08a_list_files_in_a_folder.ipynb
@@ -26,7 +26,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "For demonstration purposes, we reuse a folder of images showing banana-slices imaged using magnetic resonance imaging (Courtesy of Nasreddin Abolmaali, OncoRay, TU Dreesden)"
+    "For demonstration purposes, we reuse a folder of images showing banana-slices imaged using magnetic resonance imaging (Courtesy of Nasreddin Abolmaali, OncoRay, TU Dresden)"
    ]
   },
   {