diff --git a/pisi/archive.py b/pisi/archive.py
index 207eb73..90ff94f 100644
--- a/pisi/archive.py
+++ b/pisi/archive.py
@@ -426,7 +426,7 @@ def add_to_archive(self, file_name, arc_name=None):
             if self.tar is None:
                 self.tar = tarfile.open(self.file_path, wmode, fileobj=self.fileobj)
 
-        self.tar.add(file_name.decode("latin-1"), arc_name)
+        self.tar.add(file_name, arc_name)
 
     def close(self):
         self.tar.close()