Index: Lib/zipfile.py
===================================================================
--- Lib/zipfile.py	(Revision 87588)
+++ Lib/zipfile.py	(Arbeitskopie)
@@ -930,7 +930,13 @@
         if fheader[_FH_EXTRA_FIELD_LENGTH]:
             zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
 
-        if fname != zinfo.orig_filename.encode("utf-8"):
+        if zinfo.flag_bits & 0x800:
+            # UTF-8 filename
+            fname_str = fname.decode("utf-8")
+        else:
+            fname_str = fname.decode("cp437")
+
+        if fname_str != zinfo.orig_filename:
             if not self._filePassed:
                 zef_file.close()
             raise BadZipFile(