diff --git a/Sonnendach.py b/Sonnendach.py
index 00b5173..86b1659 100644
--- a/Sonnendach.py
+++ b/Sonnendach.py
@@ -157,7 +157,7 @@ def search_adresses(adress_list, filename_adresslist, driver, mainText):
             adress[columnIndexes[10]] = pv_Production75
             adress[columnIndexes[11]] = pv_Production100
             adress[columnIndexes[12]] = value_electricity_production
-            adress_file = open(filename_adresslist, "w")
+            adress_file = open(filename_adresslist, "w", encoding="utf-8")
             new_line_string = ""
             for j in adress:
                 new_line_string = new_line_string + j + file_split_char
@@ -182,7 +182,7 @@ def search_adresses(adress_list, filename_adresslist, driver, mainText):
 def read_adresslist(filename_adresslist):
     returnvalues = []
     try:
-        adress_file = open(filename_adresslist, "r")
+        adress_file = open(filename_adresslist, "r", encoding="utf-8")
         adress_list = adress_file.read().splitlines()
         adress_file.close()
         returnvalues.append(True)