diff --git a/scripts/translate_post.py b/scripts/translate_post.py
index 4fe17b6..0753474 100644
--- a/scripts/translate_post.py
+++ b/scripts/translate_post.py
@@ -324,7 +324,8 @@ def main() -> int:
         ids = [int(x) for x in Path(args.ids_file).read_text().split() if x.strip().isdigit()]
         log(f"ids-file {args.ids_file}: {len(ids)} posts")
     else:
-        ids = [args.carta] + carta_article_ids(args.carta)
+        # La carta puede llevar _carta_id (p. ej. tras un sync); no la traduzcas dos veces.
+        ids = list(dict.fromkeys([args.carta] + carta_article_ids(args.carta)))
         log(f"Carta {args.carta}: {len(ids)} posts (carta + {len(ids)-1} artículos)")
 
     state = load_state()