diff --git a/setup.py b/setup.py
index f01c3ae3b8..adbadc355e 100644
--- a/setup.py
+++ b/setup.py
@@ -52,6 +52,8 @@ data_files=[
         glob.glob('share/locale/ja_JP/LC_MESSAGES/*.mo')),
 ]
 
+trans_lang = ('bg', 'cs', 'de', 'es', 'fr', 'ru', 'sl', 'ja')
+
 if os.name == 'nt':
     import py2exe
 
@@ -225,7 +227,7 @@ if os.name == 'nt':
             if os.path.isfile(file):
                 shutil.copy(file, dist_dir)
 
-        for lang in ('de', 'es', 'fr', 'ru'):
+        for lang in trans_lang:
             if os.path.isdir(os.path.join(dist_dir, 'share', 'locale', lang)):
                 shutil.rmtree(os.path.join(dist_dir, 'share', 'locale', lang))
             shutil.copytree(os.path.join(gtk_dir, 'share', 'locale', lang),
@@ -318,7 +320,7 @@ elif os.name == 'mac' \
         shutil.copy(os.path.join(gtk_dir, 'share', 'themes', 'Clearlooks',
             'gtk-2.0', 'gtkrc'), os.path.join(resources_dir, 'gtkrc'))
 
-        for lang in ('de', 'es', 'fr', 'ru'):
+        for lang in trans_lang:
             if os.path.isdir(os.path.join(resources_dir, 'share', 'locale', lang)):
                 shutil.rmtree(os.path.join(resources_dir, 'share', 'locale', lang))
             shutil.copytree(os.path.join(gtk_dir, 'share', 'locale', lang),