diff --git a/src/intensivstationen/Intensivstationen.ipynb b/src/intensivstationen/Intensivstationen.ipynb
index 3b3ddb2b9b9..e50b54af2b7 100644
--- a/src/intensivstationen/Intensivstationen.ipynb
+++ b/src/intensivstationen/Intensivstationen.ipynb
@@ -21,7 +21,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "kreise = pd.read_excel('04-kreise.xlsx', sheet_name = 1, header = 5, index_col = 0)\n",
+    "kreise = pd.read_excel(\n",
+    "    '04-kreise.xlsx',\n",
+    "    sheet_name = 'Kreisfreie Städte u. Landkreise',\n",
+    "    header = 5,\n",
+    "    index_col = 0)\n",
+    "kreise = kreise.rename(columns = {'2': 'Bundesland', 3: 'Kreis', 6: 'Einwohnerzahl'})[['Bundesland', 'Kreis', 'Einwohnerzahl']]\n",
+    "kreise.index.set_names(\"Key\", inplace = True)\n",
     "kreise"
    ]
   },
@@ -73,8 +79,8 @@
     "\n",
     "    def addKreisAndBundeslandAndEinwohnerzahlColumns(self, dataFrame):\n",
     "        dataFrame_kreise = pd.merge(dataFrame, self.kreise, how = 'left', left_on = 'gemeindeschluessel', right_index = True)\n",
-    "        dataFrame['Kreis'] = dataFrame_kreise[3]\n",
-    "        dataFrame['Einwohnerzahl'] = dataFrame_kreise[6]\n",
+    "        dataFrame['Kreis'] = dataFrame_kreise['Kreis']\n",
+    "        dataFrame['Einwohnerzahl'] = dataFrame_kreise['Einwohnerzahl']\n",
     "        return self._addBundeslandColumn(dataFrame)\n",
     "        \n",
     "    def _addBundeslandColumn(self, dataFrame):\n",
@@ -86,7 +92,7 @@
     "            right_index = True)\n",
     "\n",
     "    def _createBundeslandByKeyTable(self):\n",
-    "        bundeslandByKeyTable = self.kreise.reset_index().rename(columns = {1: 'Key', '2': 'Bundesland'})[['Key', 'Bundesland']]\n",
+    "        bundeslandByKeyTable = self.kreise.reset_index()[['Key', 'Bundesland']]\n",
     "        return bundeslandByKeyTable[bundeslandByKeyTable['Key'].str.len() == 2].set_index('Key')\n"
    ]
   },