diff --git a/dsmr_parser/clients/filereader.py b/dsmr_parser/clients/filereader.py
index 061eda7..9b9cf6e 100644
--- a/dsmr_parser/clients/filereader.py
+++ b/dsmr_parser/clients/filereader.py
@@ -64,8 +64,11 @@ class FileReader(object):
         with open(self._file, "rb") as file_handle:
             while True:
                 data = file_handle.readline()
-                str = data.decode()
-                self.telegram_buffer.append(str)
+
+                if not data:
+                    break
+
+                self.telegram_buffer.append(data.decode())
 
                 for telegram in self.telegram_buffer.get_all():
                     try: