diff --git a/scripts/docs.py b/scripts/docs.py
index 056f4033f..b35bb3627 100644
--- a/scripts/docs.py
+++ b/scripts/docs.py
@@ -428,7 +428,7 @@ def verify_docs():
 def langs_json():
     langs = []
     for lang_path in get_lang_paths():
-        if lang_path.is_dir():
+        if lang_path.is_dir() and lang_path.name in SUPPORTED_LANGS:
             langs.append(lang_path.name)
     print(json.dumps(langs))