diff --git a/lib/compare_lists.py b/lib/compare_lists.py
index abfb90d..02a5eeb 100644
--- a/lib/compare_lists.py
+++ b/lib/compare_lists.py
@@ -31,7 +31,7 @@ class Partnumbers:
 
     def __init__(self, filename: str, file_dir: str):
         self.file_dir = file_dir
-        self.filename = filename.rsplit(".")[0]
+        self.filename = filename
     
     def load_from_json(self):
 
@@ -51,7 +51,7 @@ class Partnumbers:
 
         """Reads partnumbers from a csv-file"""
 
-        config_path = os.path.join(self.file_dir, self.filename + ".csv")
+        config_path = os.path.join(self.file_dir, self.filename)
 
         try:
             df = pd.read_csv(config_path, sep=';', converters={"Teilenummern":str})