diff --git a/atrcopy/__init__.py b/atrcopy/__init__.py
index e1375a4..76beb62 100644
--- a/atrcopy/__init__.py
+++ b/atrcopy/__init__.py
@@ -153,6 +153,7 @@ def add_files(image, files):
     for name in files:
         with open(name, "rb") as fh:
             data = fh.read()
+        name = os.path.basename(name)
         changed = save_file(image, name, filetype, data)
     if changed:
         image.save()