diff --git a/setup.py b/setup.py
index 17d5cb8..555e624 100644
--- a/setup.py
+++ b/setup.py
@@ -40,12 +40,8 @@ class BuildBinaryCommand(distutils.cmd.Command):
 
             os.system('pyinstaller -y -F -i icons/comic2ebook.icns -n "Kindle Comic Converter" -w -s kcc.py')
             os.makedirs('dist/Kindle Comic Converter.app/Contents/Resources/Codecs')
-            shutil.copy('other/osx/7z', 'dist/Kindle Comic Converter.app/Contents/Resources')
-            shutil.copy('other/osx/7z.so', 'dist/Kindle Comic Converter.app/Contents/Resources')
-            shutil.copy('other/osx/Rar.so', 'dist/Kindle Comic Converter.app/Contents/Resources/Codecs')
             shutil.copy('LICENSE.txt', 'dist/Kindle Comic Converter.app/Contents/Resources')
             shutil.copy('other/windows/Additional-LICENSE.txt', 'dist/Kindle Comic Converter.app/Contents/Resources')
-            os.chmod('dist/Kindle Comic Converter.app/Contents/Resources/7z', 0o777)
             # TODO /usr/bin/codesign --force -s "$MACOS_CERTIFICATE_NAME" --options runtime dist/Applications/Kindle\ Comic\ Converter.app -v
             os.system('appdmg kcc.json dist/KindleComicConverter_osx_' + VERSION + '.dmg')
             exit(0)