1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/shutil.py b/Lib/shutil.py
index 31536fe632..464ee912f5 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -958,6 +958,9 @@ def unpack_archive(filename, extract_dir=None, format=None):
     if extract_dir is None:
         extract_dir = os.getcwd()
 
+    extract_dir = os.fspath(extract_dir)
+    filename = os.fspath(filename)
+
     if format is not None:
         try:
             format_info = _UNPACK_FORMATS[format]