diff --git a/conda/clean-betas.py b/conda/clean-betas.py
index 66a18211f867469da4cf7bf75f1bb9a15b3c06e6..6b7e519c097f6c724f3c18a18e1c347ba13254d1 100755
--- a/conda/clean-betas.py
+++ b/conda/clean-betas.py
@@ -68,6 +68,7 @@ def main(scandir, dry_run):
   for (path, dirnames, filenames) in os.walk(sys.argv[1], followlinks=False):
 
     for f in filenames:
+      if f.startswith('.'): continue
       if f.startswith('repodata.json'): continue
       m = package_regex.match(f)
       if m is None: