diff --git a/src/office.py b/src/office.py
index 8d478c1..1c5e795 100644
--- a/src/office.py
+++ b/src/office.py
@@ -39,14 +39,14 @@ class ArchiveBasedAbstractParser(abstract.AbstractParser):
     def _clean_internal_file(self, item:zipfile.ZipInfo, temp_folder:str, zin:zipfile.ZipFile, zout:zipfile.ZipFile):
         zin.extract(member=item, path=temp_folder)
         tmp_parser, mtype = parser_factory.get_parser(os.path.join(temp_folder, item.filename))
-        if tmp_parser is None:
+        if not tmp_parser:
             print("%s's format (%s) isn't supported" % (item.filename, mtype))
             return
         tmp_parser.remove_all()
         zinfo = zipfile.ZipInfo(item.filename)
-        item = self._clean_zipinfo(item)
+        clean_zinfo = self._clean_zipinfo(zinfo)
         with open(tmp_parser.output_filename, 'rb') as f:
-            zout.writestr(zinfo, f.read())
+            zout.writestr(clean_zinfo, f.read())
 
 class MSOfficeParser(ArchiveBasedAbstractParser):
     mimetypes = {